Polymolybdate
多钼酸盐
🗣️ 情景例句
The only entry requirement is a valid passort.
入境的唯一条件就是持有一本有效的护照。
What should I do?
我该怎么办呢？
If I get there early, I can see the doctor quickly, she thought.
“早到就能早看医生，”她想。