compulsory

強制的、強迫的、義務的

Wearing a seatbelt is compulsory for everyone in the car.

車上每個人都必須繫安全帶。

必修的教育

Math remains a compulsory subject throughout high school.

數學在整個高中階段都是必修科目。

強制性的、法定的法律

The land was taken under a compulsory purchase order.

這塊土地依強制徵收命令被取得。

規定動作、指定項目體育，常用複數

She scored well in the compulsories but faltered in the free program.

她在規定動作拿到高分，但自由項目表現失常。