cool it【俚语】To calm down; relax.冷静下来；轻松cool (one`s) heels【非正式用语】To wait or be kept waiting.等着或别人让等着习惯用语>来源：Middle English cole 中古英语 cole from Old English côl * see gel- 源自 古英语 côl *参见 gel- 【引伸】cool.ishadj.（形容词）cool.lyadv.（副词）cool.nessn.（名词）cool,composed,collected,unruffled,nonchalant,imperturbable,detached同义词>These adjectives apply to persons, their attitudes, their behavior, or their actions to indicate absence of excitement or discomposure,especially in times of stress.这些形容词适用于人或人们的态度、举止或行为，表示冷静沉着或不慌不忙，尤其是在紧张时刻。 Cool usually implies merely a high degree of self-control,though it may also indicate aloofness: Cool 通常只指一种高度的自我控制，虽然它也可以表示冷漠超然： 例句：.Keep strong, if possible.In any case, keep cool.Have unlimited patience. (B.H. Liddell Hart). .如果可能，保持强壮。任何情况，保持冷静。要有无限的耐心. （B·H·里德尔·哈特）。 例句：.An honest hater is often a better fellow than a cool friend. (John Stuart Blackie). .一个恨你但是诚实的人常常比一个漠不关心的朋友更好. （约翰·斯图亚特·布莱基）。 Composed implies a serene, often sedate quality arising from self-discipline: Composed 带有产生于自我约束的一种安详宁静的，常常是镇定沉着的品质之意： 例句：The performer was composed as she readied herself for her entrance on stage.这位演员在准备上场时沉着冷静。Collected suggests self-possessed composure: Collected 含有泰然自若、沉着镇静之意： 例句：The witness remained collected throughout the cross-examination.证人在整个反诘问过程中保持着镇静自若。Unruffled emphasizes calm despite circumstances that might elicit agitation: Unruffled 强调环境可能会引起激动不安时仍保持冷静： 例句：.with contented mind and unruffled spirit. (Anthony Trollope). .心满意足且心情平静. （安东尼·特洛普）。 Nonchalant describes a casual manner that may suggest, sometimes misleadingly, a lack of interest or concern: Nonchalant 指一种可能（有时是误导性地）带有缺乏兴趣或关心意味的不拘礼节的态度： 例句：He doesn`t seem excited;他看上去并不兴奋；例句：on the contrary, his demeanor is easy and nonchalant.相反，他的举止轻松而无动于衷。Imperturbable stresses unshakable calmness considered usually as an inherent trait rather than as a product of self-discipline: Imperturbable 侧重于一种不可动摇的沉着冷静，通常被认为是天生的特性而不是自我约束的产物： 例句：.A man . . ./Cool, and quite English, imperturbable. (Byron). .一个…非常英国式的人，冷漠而不易激动. （拜伦）。 Detached implies aloofness resulting either from lack of active concern or from resistance to emotional involvement: Detached 含有冷漠超然的意思，可以是因为不太关心也可以是因为不愿介入感情纠葛： 例句：She may be detached,she may even be unfeeling,but at least she`s not hypocritically effusive. See also Synonyms at cold 她可能冷漠，她甚至可能冷酷无情，但至少她不会假惺惺地过分热情 参见同义词 cold参考词汇>