4 sentences for 以防 (yǐ​fáng — in case)

1. 以防你突然自然死亡。

   yǐ​fáng nǐ tū​rán zì​rán sǐ​wáng.

   In case you suddenly die of natural causes.

   Source: OpenSubtitles

2. 最好带件外套，以防天气变冷。

   zuì hǎo dài jiàn wài​tào, yǐ​fáng tiān​qì biàn lěng.

   You'd better bring a jacket in case the weather gets cold.

   Source: Dong Chinese Dictionary

3. 不，你得发誓，以防我到时不在场。

   bù, nǐ děi fā​shì, yǐ​fáng wǒ dào​shí bù zài​chǎng.

   No, you've got to swear it, in case I'm not here.

   Source: OpenSubtitles

4. 我们要做好准备，以防万一发生不测。

   wǒ​men yào zuò hǎo zhǔn​bèi, yǐ​fáng wàn​yī fā​shēng bù​cè.

   We must be well-prepared in case of any unforeseen circumstances.

   Source: Dong Chinese Dictionary