Dmf.
[医] 恒牙龋总数(率)
🗣️ 情景例句
She has the ability to speak English fluently.
她能够流利地说英语。
He that never climbed never fell.
不向上爬的也不会下跌。
to work or worry about trifling things at the weekend.
在周末再让他们为琐事而动脑子和忧虑。