Dacthal)
[化] 敌草索; 四氯代对苯二甲酸二甲酯
🗣️ 情景例句
Don't worry about it. It's nothing.
别担心，没事儿。
Someone is working in the manhole.
有人在
To escape from the Earth in a rocket, one must travel at seven miles per second.
要乘坐一枚火箭飞离地球，火箭的速度要达到每秒7英里，