🗣️ 情景例句
or Mom is at a committee meeting.
就是妈妈参加小组会议。
How much does packing take up of the total cost of the goods?
包装占货物总成本的百分比是多少？
Byrd now knew that he would be able to reach the South Pole which was 300 miles away, for there were no more mountains in sight.
伯德这时知道他能够顺利飞抵300英里以外的南极了，因为前面再没有山了。