empty 1.An empty place,vehicle,or container is one that has no people or things in it. 空的 The room was bare and empty. 2.An empty gesture,threat,or relationship has no real value or meaning (威胁、关系等)空洞的，无意义的，无效的 e.g.empty words,promises,talk 3.If you describe a person's life or a period of time as empty,you mean that nothing interesting or valuable happens in it.(生活或某段时间)空虚的，枯燥无味的 4.If you feel empty,you feel unhappy and have no energy, usually because you are very tired or have just experienced something upsetting. (感觉)空虚的，无力的
empty 1. An empty place, vehicle, or container is one that has no people or things in it. The room was bare and empty. 2. An empty gesture, threat, or relationship has no real value or meaning e.g. empty words, promises, talk 3. If you describe a person's life or a period of time as empty, you mean that nothing interesting or valuable happens in it. 4. If you feel empty, you feel unhappy and have no energy, usually because you are very tired or have just experienced something upsetting. 空的 (威胁、关系等)空洞的，无意义的，无效的 (生活或某段时间)空虚的，枯燥无味的 （感觉）空虚的，无力的
empty 5.If you empty a container,or empty something out of it,you remove its contents,especially by tipping it up. 清空把..倒空 I emptied the ashtray... 6.If someone empties a room or place,or if it empties,everyone that is in it goes away 渴 (使)（房间、场地等)变空；清空 7.A river or canal that empties into a lake,river, or sea flows into it. (河流或运河)流入，注入
empty 5. If you empty a container, or empty something out of it, you remove its contents, especially by tipping it up. I emptied the ashtray... 6. If someone empties a room or place, or if it empties, everyone that is in it goes away 7. A river or canal that empties into a lake, river, or sea flows into it. 清空;把…倒空 （使）（房间、场地等）变空;清空 （河流或运河）流入，注入
vain 1.A vain attempt or action is one that fails to achieve what was intended. 徒劳的；无效的；不成功的 2.If you do something in vain,you do not succeed in achieving what you intend 徒劳；白费力气 雨 超
vain ▪ 1. A vain attempt or action is one that fails to achieve what was intended. ▪ 2. If you do something in vain, you do not succeed in achieving what you intend 徒劳的;无效的;不成功的 徒劳;白费力气
hollow 1.Something that is hollow has a space inside it, as opposed to being solid all the way through. ...a hollow tree. 空的；空心的；中空的 A bar of iron is solid;a pipe is hollow. >铁棍是实心的，而管子是空心的。 2.A surface that is hollow curves inwards. 凹的；凹陷的 He looked young,dark and sharp-featured,with hollow cheeks. 他看起来很年轻，肤色黝黑，五官分明，双颊凹陷。 3.If you describe a statement,situation,or person as hollow,you mean they have no real value,worth,or effectiveness. 空洞的；无用的无价值的
hollow 1. Something that is hollow has a space inside it, as opposed to being solid all the way through. ...a hollow tree. A bar of iron is solid; a pipe is hollow. 2. A surface that is hollow curves inwards. He looked young, dark and sharp-featured, with hollow cheeks. 3. If you describe a statement, situation, or person as hollow, you mean they have no real value, worth, or effectiveness. 空的;空心的;中空的 ➢铁棍是实心的，而管子是空心的。 凹的;凹陷的 他看起来很年轻，肤色黝黑，五官分明，双颊凹陷。 空洞的;无用的;无价值的
4.If someone gives a hollow laugh,they laugh in a way that shows that they do not really find something amusing. (笑声等)虚伪的，不真诚的 5.A hollow sound is dull and echoing. (声音)空洞的，沉闷回荡的 the hollow sound of a gunshot. 圈 空洞的枪响 阔
4. If someone gives a hollow laugh, they laugh in a way that shows that they do not really find something amusing. 5. A hollow sound is dull and echoing. ...the hollow sound of a gunshot. （笑声等）虚伪的，不真诚的 （声音）空洞的，沉闷回荡的 空洞的枪响