7 sentences

1. 带上你的外套以防下雨。

   dài shàng nǐ de wài​tào yǐ​fáng xià yǔ.

   Take your coat in case it rains.

   Source: Tatoeba

2. 他把自行车后轮锁上，以防被盗。

   tā bǎ zì​xíng​chē hòu​lún suǒ shàng, yǐ​fáng bèi dào.

   He locked the rear wheel of the bike to prevent it from being stolen.

   Source: UM-Corpus: Education

3. 我甚至没有卡片可以留给你，以防你改变主意。

   wǒ shèn​zhì méi​yǒu kǎ​piàn kě​yǐ liú​gěi nǐ, yǐ​fáng nǐ gǎi​biàn zhǔ​yi.

   I don't even have a card to leave with you in case you ever change your mind.

   Source: CCMatrix

4. 总是避免把所有的贵重物品放在一个袋子里，以防这个袋子丢失或被盗。

   zǒng​shì bì​miǎn bǎ suǒ​yǒu de guì​zhòng wù​pǐn fàng zài yī​ge dài​zi li, yǐ​fáng zhè​ge dài​zi diū​shī huò bèi dào.

   Always avoid putting all your valuables in one bag in case this bag is lost or stolen.

   Source: CCMatrix

5. 他走在女孩几公尺之前，以防万一。

   tā zǒu zài nǚ​hái jǐ gōng​chǐ zhī​qián, yǐ​fáng​wàn​yī.

   He walked a few meters ahead of the girl, just in case.

   Source: CCMatrix

6. 即使如此，我总是确保我准时，以防万一医生也是如此。

   jí​shǐ rú​cǐ, wǒ zǒng​shì què​bǎo wǒ zhǔn​shí, yǐ​fáng​wàn​yī yī​shēng yě​shì rú​cǐ.

   Even so, I always make sure I am on time, just in case the doctor is too.

   Source: CCMatrix

7. “哦，以防万一，这是我的姓名和地址，“他说，递给她一张卡片。

   “ ò, yǐ​fáng​wàn​yī, zhè shì wǒ​de xìng​míng hé dì​zhǐ,“ tā shuō, dì gěi tā yī zhāng kǎ​piàn.

   “Oh, just in case, here’s my name and address,” he said, handing her a card.

   Source: CCMatrix