Ostia
[医] 口, 门口
🗣️ 情景例句
The best way to promote your products is through advertising.
推广产品最好的方法就是买广告。
You can't make something out of nothing.
巧妇难为无米之炊。
Every morning, he left home dressed in a smart black suit.
每天早晨，他穿上一身漂亮的黑色西装离家上班，