Calculi
n. 微积分学, 结石\\n[医] 结石, 石
🗣️ 情景例句
What power options are available? ( steering, brakes, windows.... )
（这种汽车）有中控系统吗？
Save a thief from gallows and he will help hang you.
放虎归山。
What do the machines do? asked Jim.
“这些机器做什么用？”吉姆问。