Phosphonate
膦酸盐, 膦酸酯
🗣️ 情景例句
I'll miss you too.
我也会想你们。
Live to learn and learn to live.
生而学之，学而生之。
First of all, they may have come to this planet of ours thousands or millions of years ago,
首先，他们可能在几千年前或几百年万年前已来过我们地球，