同根派生 before hand相關(guān)詞英漢例句Always look your work through before handing it in. 交作業(yè)前一定要仔細檢查。How clever of you to book the ticket before hand ! 你真聰明，預(yù)先把票子買好了。Look over the exercises before handing them in. 把練習(xí)再檢查一遍。Before hand in your exercise,you must go it over. 你在交練習(xí)之前，一定要仔細檢查一遍。Make a check on your answers before hand in. 交上來之前再核對一下答案。before hand更多例句