Phosphinate
亚膦酸盐, 亚膦酸酯
🗣️ 情景例句
I've been in China to work on the new project.
我一直在中国搞一个新项目。
I hope my visit does not cause you too much trouble.
我希望这次来参观没有给你们增添太多的麻烦。
Half an hour? That's too long! Is there a bus?
半小时？那太久了！有公共汽车吗？