Tricalcium
三钙
🗣️ 情景例句
At today's exercise class...
今天上健身课的时候……
I hope you don't mind my asking, but I wonder if it might be at all possible for you to lend me your car.
希望你不介意我的请求，我不知道你是否可以把车借我用一用。
Young people love this time of year, because it is good for sports.
年轻人喜爱这个时节，因为它适合体育运动。