• adj. 強制的；托管的；命令的
• n. 受托者（等于mandatary）

來自mandate,命令。即命令的，引申詞義強制的，法定的。

mandatory (adj.)

1570s, "of the nature of a mandate," from Late Latin mandatorius "pertaining to a mandator," from Latin mandatus, past participle of mandare (see mandate (n.)). Sense of "obligatory because commanded" is from 1818.

1. In a case of premeditated murder a life sentence is mandatory.

蓄意殺人依法要判無期徒刑。

來自柯林斯例句

2. It is mandatory for blood banks to test all donated blood for the virus.

血庫必須檢查所有捐獻的血是否含有這種病毒。

來自《權威詞典》

3. Is the appointment of worker - directors to be mandatory?

工人董事的任命是不是強制性的?

來自《簡明英漢詞典》

4. Attendance is mandatory.

務必參加。

來自辭典例句

5. Attendance at the meeting is mandatory.

出席會議是必要的

來自辭典例句