重要词汇：- Health insurance 医保 - Insurance 保险

- Expired (因到期而)失效 / 到期 - You should check if it has expired. - Expiry date 到期日

- Get hit by sth. 被某物撞了 - He got hit by a car yesterday, he's fine though. - I was walking in the park, and I got hit by a football.

- Catch on fire 被火烧 - My hair caught on fire. - Be careful, that might catch on fire. - This material won't catch on fire.