Sodium methyl-acetoacetic ester
[化] 钠代甲基乙酰乙酸酯; (专指)钠代甲基乙酰乙酸乙酯
🧩 词语组成解析
sodium
['sodɪəm]
n. <化>钠(11号元素，符号 Na);
n. 甲基\\n[化] 甲基
n. 酯\\n[化] 酯
🗣️ 情景例句
Tell me the courses you have completed in school and what is your favorite subject?
你曾修读哪些课程和你最喜欢哪一科？
The wise man has long ears and a short tongue.
聪明人耳朵长，嘴巴短。
Yes, and we must stop people walking on this floor until it's firm. It may be necessary to put up a notice saying Keep off. Another thing, we' ll have to drill a hole in the wall for the electric wires.
是的，因此在地板牢固前，我们必须防止人们从地板上行走。可能还需要竖一个布告牌，写上“不得践踏”。还有，我们必须在墙上钻一个电线孔。