lest

英 [lest]

美 [lest]

conj.  免得; 以免; (引出产生某种情感的原因)唯恐，担心

CET4CET6考研TEM4TEM8

Collins.1 / BNC.9641 / COCA.8827

牛津词典

conj.

• 免得；以免
  in order to prevent sth from happening
  1. He gripped his brother's arm lest he be trampled by the mob.
     他紧抓着他兄弟的胳膊，怕他让暴民踩着。
• （引出产生某种情感的原因）唯恐，担心
  used to introduce the reason for the particular emotion mentioned
  1. She was afraid lest she had revealed too much.
     她担心她泄露得太多了。

柯林斯词典

• CONJ-SUBORD 唯恐；免得
  If you do somethinglestsomething unpleasant should happen, you do it to try to prevent the unpleasant thing from happening.
  1. I was afraid to open the door lest he should follow me...
     我不敢开门，唯恐他还跟着我。
  2. The president has gone along with the hardliners lest they be tempted to oust him...
     总统同意了强硬派的意见，以免他们产生赶他下台的念头。
  3. And, lest we forget, Einstein wrote his most influential papers while working as a clerk.
     大家不要忘记，爱因斯坦最有影响力的论文还是当文员的时候写的。

双语例句

• Beware your hat, lest it should be blown away.
  当心你的帽子别被吹走了！
• I hesitated to speak lest I disturB our tranquility.
  我迟迟不说话，惟恐搅乱了我们的宁静。
• And, lest we forget, Einstein wrote his most influential papers while working as a clerk.
  大家不要忘记，爱因斯坦最有影响力的论文还是当文员的时候写的。
• She went into the bedroom softly so as not to wake her child ( or lest she should wake her child).
  她轻轻地走进卧室，生怕惊醒了孩子。
• I trembled lest he should send me to call her;
  我直发抖，唯恐他差我去叫她。
• Do not overexert when reaming holes or threading, lest breaking off the reamer or the tap.
  铰孔或攻丝时，不要用力过猛，以免折断铰刀或丝锥。
• Lest I forget them never venture to leave me alone.
  他们从不敢冒险离开我，唯恐我将其忘记。
• He took his umbrella lest it should rain.
  他带了雨伞以免下雨。
• Read in a good light lest it should hurt your eyes.
  到明处来看书，免得搞坏了视力。
• They spoke in whispers lest they should be heard.
  他们低声耳语惟恐被人听见。