Biphenylamine
联苯胺
🗣️ 情景例句
and the company in Los Angeles
而在Los Angeles
Time past never returns, amoment lost, lost for ever.
过去的时间决不返回，浪费一点，永远消失。
You've done very well. It's a pity you missed the sports meeting last week.
你学得不错嘛。很可惜，你错过了上周的运动会。