Bioeffect
生物效应
🗣️ 情景例句
Three cheers for Ms Li.
给李小姐三声欢呼！
I would like to call an eletrician to come this afternoon.
我要叫一个电器师傅今天下午来。
No problem! Tell me, do I have to take them before or after meals?
“那不难！告诉我，我是在饭前还是饭后吃呢？”