2.MARY坚决要求参加这次中学生演讲比赛(INSIST)
5.你一旦进入实验室后,就要遵守那儿的规则.(ONCE)
參考答案:MARY insisted on participating in this middle-school student oratorical contest (INSIST)
5.Once you enter the laboratory,you must observe the rule.(ONCE)
2.MARY坚决要求参加这次中学生演讲比赛(INSIST)
5.你一旦进入实验室后,就要遵守那儿的规则.(ONCE)
參考答案:MARY insisted on participating in this middle-school student oratorical contest (INSIST)
5.Once you enter the laboratory,you must observe the rule.(ONCE)