theretofore
英[\'ðeətə\'fɔ:]
美[ˌðertə\'foʊr]
基本释义
- adv.
- 在那以前，到那时为止
实用例句
They had not done any work theretofore.
到那时为止,他们的工作还一点儿都没做.
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英英释义
Adverb
1. up to that time;
"they had not done any work theretofore"