One end of the windpipe is connected with a unidirectional inflating valve.气管的一端与单向充气阀连接.Experiment materials: jar , windpipe, limewater, flume and the experiment record chart for each group.学生用材料: 广口瓶 、 导气管 、 石灰水、火柴、集气瓶...
Workmen were hired to remodel and enlarge the farm buildings.雇用了工人来改造和扩建农场建筑。Different states or groups can combine to enlarge their markets.不同的州或企业集团可以联合起来以扩大市场。I wish to enlarge upon a statement made by Gary Docking.我想...