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);
methyl
n. 甲基\\n[化] 甲基
ester
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。
更多情景英语 ›

🔤 更多 S 开头的单词

significant sɪɡ'nɪfɪkənt
全部 S 开头单词 ›