Mesothoriumi
[化] 新钍I; 228Ra
🗣️ 情景例句
I feel as if we've met each other before.
我觉得我们以前见过面。
They are still lower than the quotations you can get elsewhere.
这些报价比其他任何地方都要低得多。
Where have you been?
你去哪儿了？