Chemicla
化学品
🗣️ 情景例句
I'm not getting on very fast with this job.
我这份工作进展不快。
Fear not the future; weep not for the past.
不要为未来担忧，不要为过去悲泣。
4 Think of a time when you were happiest. What were you doing?
4。想一想你感到最高兴的时刻。当时你在做什么？