每日短語 第984期:忙於 本文已影響 2.96W人 今日短語:be occupied in (with).ing-bottom: 100%;">忙於……,正從事於……例句:He was occupied in the study of mathematics.他忙於研究數學。When we arrived he was occupied in mowing the lawn.我們抵達時他正在割草。