[法] 无委任状的, 未受任命的, 无委托的
National Non Commissioned Officer Academy 国家士官学校
He commissioned a statue of his wife. 他请人制作他妻子的雕像。
This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
Patience is a sine qua non for a good teacher. 做个优秀教师必不可少的条件是要有耐心。
The diplomat was declared persona non grata. 这位外交家被宣布为不受欢迎的使节。
