Pentethide
五乙基化物
🗣️ 情景例句
Hello, Harry.
你好 ，Harry。
They think people should be less extravagant.
他们认为民众应该更加节制奢侈。
Travellers on short trips to areas with water supplies of uncertain quality should avoid drinking tapwater, or untreated water from any other source.
短途旅行到水质不保险的地区时，应避免饮用水龙头的水或未经处理任何其他来源的水。