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1.face-mask 口罩
When you wear a properly fitted surgical mask, it acts as a barrier between the germs and your face.
当您戴着大小合适的医用口罩时，它会在细菌和您的脸之间形成一道屏障。
2.as well as 除……之外
Coursework is taken into account as well as exam results.
除考试结果外，课程作业也要计入成绩。
3.immune system 免疫系统
The job of the immune system is to fight infections.
免疫系统的工作就是对抗感染。
4.at first glance 乍一看
At first glance this is good news for the emerging markets.
乍一看，这对新兴市场而言是个好消息。
