Pentaether
五醚, 四甘醇二丁醚
🗣️ 情景例句
I'd like to have this check cashed.
我想将这张支票兑现。
I have no idea what they're going to say, so I'll have to play it by ear.
我一点不知道他们将会说些什么，所以我只好见机行事。
Therefore,we always put quality as the first consideration.
因而，我们总是把质量放在第一位来考虑。