Precollagen
[化] 前胶原\\n[医] 前胶原, 原成胶
🗣️ 情景例句
to work out a program
想研拟一项计划
He likes playing the trumpet.
他喜欢吹喇叭。
As soon as this was done, they cooked a meal over an open fire.
这件事刚刚做完，他们就在篝火上烧起了饭。