You should be conservative in descriptions of your success, lest you leave the impression that you are bragging, or have something to prove.

在谈论你的成功时你应当保持矜持，否则的话会给别人留下你在夸口或者你在证明什么的印象。

youdao

If they have a story about a kitten caught in a tree, you endure it, lest you miss a minute of something that is actually relevant to you.

即使是一个在树上被抓的小猫的小事，你却都要忍受着看完这些，生怕错过了一点跟你有关的事情。

youdao

In some cases, you want the same version of an application deployed everywhere, lest users be confused by inconsistent idiosyncrasies.

在有些情况下，您希望在所有的地方都部署某个应用程序的相同版本，以免不一致的特性让用户感到困惑。

youdao

U. that German aid would not be contingent on Opel keeping a certain number of jobs in Germany, lest Germany run afoul of European competition policy.

FORBES: Opel's Bumpy Ride

Bloggers and forum posters will catch on, and instead of a raucous dinner party, the web will become more like a never-ending global job interview, in which every remark is carefully vetted lest it look bad in the eyes of a future employer.

ECONOMIST: Who has a closet without a skeleton?

Sure, we carefully covered every inch of trim in a heavy moving blanket beforehand, lest some sharp bit of bike drivetrain nip at the Targa's interior, but the point is, we did it, and even drove home with our Italian cargo and our loaner German hauler both arriving unscathed.

FORBES: Test Drives