英语翻译1.你们的作业必须认真做2.你们的作业可以明天交3.水能变成冰4.孩子们应当好好照顾5.教室必须保持干净6.小树

1。Your homework must be done carefully。2。Your homework may be handed in tomorrow。3。Water can be changed into ice。4。The children should be taken good care of。5。The classroom must be kept clean。6。The little tree should be watered every day。7。The bike can be repaired within two hours。