Dipicolinic acid
[化] 吡啶二羧酸
🧩 词语组成解析
🗣️ 情景例句
You'll feel better tomorrow, Betty, believe me.
明天就会好些， Betty， 相信我。
This is my second trip to the United States, and I really enjoy staying here.
这是我第二次美国之行，我很喜欢这里。
He walks with a quick pace.
他快步走路。