Silvisar
二甲胂酸
🗣️ 情景例句
Hey, Xiao Li, are you doing anything this weekend?
嘿，小李，这个周末有没有什么事要做？
No practice, no gain in one's wit.
吃一堑，长一智。
John seldom gets together with his friends.
约翰很少与朋友聚在一起。