Hydrorubber
氢化橡胶
🗣️ 情景例句
A friend of a friend is good pals with the lead singer.
我一个朋友的朋友跟那个主唱歌手是朋友。
Scratch my back and I'll scratch yours.
朋比为奸。
who put his questions to nature instead of to the ancients,
他向自然界而不是向古人提出问题，