Arccos
反余弦
🗣️ 情景例句
Do you have any evidence?
你有什么证据？
He has gone far beyond me in learning.
他在学问上超过我。
The pie committee telephoned a local garage owner who arrived in a recovery truck to salvage the pie dish.
馅饼委员会给当地汽车修理库老板打电话，他闻讯后开着一辆急修车前来打捞盘子。