Tridane
十三烷基苯
🗣️ 情景例句
Robbie! Good luck!
Robbie！祝你好运！
I'm too busy.
我太忙。
When you think of the innumerable birds that one sees flying bout,
你可以想象出天上有看得见的飞来飞去、数不清的鸟，