Hf akylation
[建] 氢氟酸催化基化
🧩 词语组成解析
[医] 铃(72号元素)
🗣️ 情景例句
Please look us up.
请和我们联络。
Then we'd have some idea of what you'll be needing.
那么我们就会心中有点儿数，知道你们需要什么了。
Sorry. I had a little, but I don't feel like eating.
对不起。我吃了一点儿，我不想吃。