Polymolybdate
多钼酸盐
🗣️ 情景例句
Well, it won't be easy.
嗯， 不很容易。
My biggest problem so far has been trying to remember everybody's name.
迄今为止我最大的问题就是尽量记住每个人的名字
The shuttle Endeavour will be taking the astronauts to the Hubble.
“奋进”号航天飞机将把宇航员送上哈勃。