Picolinic acid
[建] 啶甲酸-[2]
🧩 词语组成解析
🗣️ 情景例句
to schedule one hour a week--to start with.
安排一星期一个小时。
When do you get up everyday?
每天你几点起床？
Well done, everyone! she smiled.
“你们个个表现出色！”她笑了