People who suffer from allergies can sometimes be injections to help desensitize them.患过敏反应的人有时可用注射针剂以帮助脱敏.He has occasional injections to maintain his good health but otherwise he lives a normal life.他偶尔要注射药物保持身体健康，但除此之...
The tyre is guaranteed never to puncture or go flat.这种轮胎保证永远不会被扎破或撒气。Obviously the puncture threw me a little, but I'm reasonably happy.显然，轮胎扎破让我感到有些意外，不过我还是挺开心的。Somebody helped me mend the puncture.有个人帮我修补扎破的轮胎。...