Straitford's briefs don't sound like the usual Washington back-and-forthing, whereby agencies avoid dramatic declarations on the chance they might be wrong. 请问老师Whereby引导什么从句?on the chance引导从句吗?
whereby引导定语从句,修饰Washington back-and-forthing。whereby为关系副词,是古体,等于by which。on the chance that为习语,大约等于in case, for fear that,引导目的状语从句。以防、以免...。
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