Nonadecanoic acid
[化] 十九酸; 十九烷酸
🧩 词语组成解析
🗣️ 情景例句
You did a good job sewing this dress, I can see that you sewed the sections in the correct order.
你这条裙子做得不错，我看得出来你是按顺序来做缝纫的。
To worry
烦恼，担心
The big clock refused to welcome the New Year.
那座大钟不愿意迎接新年。