Biogeochemical
a. 生物地球化学的
🗣️ 情景例句
What do you do in your spare time?
你在业余时间如何消遣？
Better say nothing than nothing to the purpose.
与其说话不中肯，不如一言不发好。
Of course. And why not buy some English tapes and some books to go with them? I'm sure you'll find them useful.
当然了。干吗不买些英语磁带和与之配套的书呢？我相信你会觉得它们有用的。