1TO/IN ORDER TOin order to make sure that something will not happen 免得,以免
She turned away from the window lest anyone see them.
她转身离开窗边,免得有人看见他们。
2IFused to show that someone is afraid or worried that a particular thing might happen 唯恐,生怕〔用于表示害怕或忧虑某事可能发生〕
worried/concerned/anxious etc lest ...
He paused, afraid lest he say too much.
他停顿下来,唯恐说得太多。
She worried lest he should tell someone what had happened.
她担心他会把发生的事说出去。
Examples from the Corpus
lest• She pulled away from the windowlest anyone see them.• He paused, afraid lest he say too much.
worried/concerned/anxious etc lest ...• Wendy and I were at once amused and embarrassed, but also concerned lest he be mown down by a passing train.• He found it difficult to sleep at night, anxious lest his delay might cause furthertragedy at Godstowe.• Immediately I felt worried lest I be seen as different from the others.• Businesses are worried lestpushing things too fastleads to the adoption of quotas for women and minorities.• He was already worried lest she should tell some one what had happened.• Obviously he was worried lest they may have sustained some damage by coming into contact with my nasty hard ribs.