protect against unauthorized shutdowns
protect against unauthorized shutdowns
protect against strong winds
protect against是什么意思
Unauthorized
请教protect against 的protect from区别
protect from,protect against有区别吗
protect (from or against) 向.提抗议.
protect from/against用法及造句.
A.for;protect B.against;protect C.for;to protect D.to The so
英语翻译Regular exercise can protect you against heart disease.
Some insurance policies do not protect the insured against a
protect sth.from sth.和protect sth.against sth.有什么区别?