以免 (yǐ miǎn): so as not to, lest

Before going out, my mother repeatedly reminded me to take an umbrella so as to avoid getting soaked if it rained.

The teacher suggested we review our notes every day so as to avoid cramming right before the exam.

The doctor instructed him to take his medicine on time so as to avoid the illness worsening.

Please back up important files to the cloud so as to avoid data loss caused by computer failure.

Before signing a contract, you should read the terms carefully so as to avoid disputes later on.

You'd better set off now so as to avoid missing the last bus.