Diprotic
双质子的
🗣️ 情景例句
Now let's head off for the city and the university club.
现在让我们进城去， 到大学俱乐部。
Good deeds will shine as the stars of heaven.
善行如日月经天。
The meeting was scheduled for two hours, but it is not over yet.
会议原定了两个小时，不过现在还没有结束。