was up at在這句話里面沒有實(shí)際意義,屬于口語化的詞,后半句的意思是,”當(dāng)他在黑板上解釋數(shù)學(xué)難題時(shí)“
所以was up at可以作為“...在...的時(shí)候”
請(qǐng)幫我理解一下“was up at”在以下句子的意思
請(qǐng)幫我理解一下“was up at”在以下句子的意思
We were all laughing up our sleeves at the teacher when he was up at the blackboard explaining the math problem
We were all laughing up our sleeves at the teacher when he was up at the blackboard explaining the math problem
英語人氣：602 ℃時(shí)間：2020-05-12 05:04:49
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