Saponide
合成洗涤剂
🗣️ 情景例句
You should save some money in case of urgent need.
你应该存点钱以备不时之需。
Delivery has to be put off due to the strike of the workers at the port.
由于港口工人罢工，交货只好推迟。
I have had so many falls that I am black and blue all over.
我摔了好几跤，全身又青又紫。