Tricalcium
三钙
🗣️ 情景例句
What's your telephone number?
你的电话号码是多少？
Time reveals all things.
时间会揭露一切。
These friendly dogs, which were first brought from Asia, were used as watchdogs even in Roman times.
那些最先从亚洲引进的狗，待人友好，早在罗马时代就给人当看门狗了。