汉词网为您提供guard against是什么意思,guard against的用法,guard against的词性,guard against的词根,guard against短语搭配,guard against真题例句等功能，学习单词超轻松。

汉词网为您提供safeguard against是什么意思,safeguard against的用法,safeguard against的词性,safeguard against的词根,safeguard against短语搭配,safeguard against真题例句等功能，学习单词超轻松。

汉词网为您提供guard against damp是什么意思,guard against damp的用法,guard against damp的词性,guard against damp的词根,guard against damp短语搭配,guard against damp真题例句等功能，学习单词超轻松。