Tetrathionic acid
[化] 连四硫酸
🧩 词语组成解析
🗣️ 情景例句
and this is an important decision we have to make.
这又是我们必须做的一个重大决定。
Can you guess what I was doing this morning?
你能猜到今天上午我在做什么吗？
It's worth every penny of it.
它确确实实值这么多钱。