Microreactor
[化] 微型反应器
🗣️ 情景例句
Grandpa helped me yesterday afternoon.
昨天下午祖父帮我的忙。
The postman always comes at 2 o'clock.
邮递员总是在2点钟来。
That was quick! she said. Have you finished already?
“你真快！”她说，“你已经买完东西了吗？”