每日短语 第984期:忙于 本文已影响 2.85W人 今日短语:be occupied in (with).ing-bottom: 100%;">忙于……,正从事于……例句:He was occupied in the study of mathematics.他忙于研究数学。When we arrived he was occupied in mowing the lawn.我们抵达时他正在割草。