Question

【题目】做饭前你应该洗手，以防感染传染病。

You should wash your hands before preparing food to ___________________________spreading infection.

Answer 1

【答案】guard against

【解析】

分析句子可知横线处为动词不定式作目的状语，guard against意为“提防，防范”符合题意，故填guard against。