Silicea
硅剂
🗣️ 情景例句
At the Bronx High School of Science.
在Bronx区的理科中学读书。
For professional footballers, injuries are an occupational hazard.
对于职业足球运动员来说，受伤是职业本身带来的危险。
I hate this. It always makes problems.
我讨厌这种做法。它总是惹麻烦。