Methylacetoacetyl-
[化] 甲基乙酰乙酰基
🗣️ 情景例句
Is something the matter, Grandpa?
怎么了，爷爷？
While (or Where) there is life there is hope.
留得青山在，不怕没柴烧。
If a shop assistant told him she had not heard of it, he would pretend to be considerably put out.
要是女售货员告诉他从未听说过这些东西，他会装出十分遗憾和不安的样子。