Tetrahydroxide
四羟化物
🗣️ 情景例句
I'm very glad to meet you.
很高兴认识你。
If you have something to say…say it!
有话快说。
When my mother had died after a tragic accident, he did not quickly recover from the shock and loneliness.
当时我母亲在一次事故中惨死，父亲未能很快从悲痛与孤独中恢复过来。