"attendance is obligatory"
"an obligatory contribution"
"he made all the obligatory apologies"
Betjeman was sent down..for failing the obligatory University examination in Divinity.
出自: H. Carpenter
They did not relish standing in the blowing snow..for the obligatory identity check.
出自: F. Pohl
以上内容独家创作,受著作权保护,侵权必究
海词词典,十七年品牌