Anestrus ( absence of estrus ) is not a disease but a sign of a variety of conditions.乏情不是一种疾病,而是一种多方面的体态迹象.I had to sign on the dole on Monday.我只好于星期一办理了领取失业救济金的登记。Guests are returning in increasing numbers — a sure sig...

sign的音标：sign的英式发音音标为：[saɪn]sign的美式发音音标为：[saɪn]...

The priest made the sign of the cross over him.神父在他上方画了个十字。Her son used sign language to tell her what happened.她儿子用手语告诉她发生了什么事。O.K. I'll sign off. We'll talk at the beginning of the week.好，就说到这儿吧，下周初我们再谈。...

sign的近义词/同义词有：gesture, indicate, signal, wave, motion, mark, seal, initial, endorse, badge, signal, token, emblem, symptom, gesture, omen, symbol, gesture, wave, portent, initial, clue, signify, indicate, autograph, warn...

sign的近义词有：groan, moan, sigh, sob,symbol, badge, sign, signal, mark, token, attribute, emblem。下面这些名词(动词)均有"叹息声，叹息"的含义：groan：侧重指因受到难忍受的精神负担或强烈的痛苦等而发出沉重的呻吟，也指显示强烈不满的叹息声。moan语气比groan强，多指拉长的或连续的悲叹(声)或呻吟(声)。sigh：多指无意识地发出表示沮丧、悲...

sign的现在进行时为：signing...

sign的复数形式为：signs...

sign的第三人称单数（三单）为：signs...

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sign的现在完成时为：signed...

sign的一般过去时为：signed...