Bioseries
生物系列
🗣️ 情景例句
saying he was going to the railroad station
说他要去火车站
What were you doing when I called you on the telephone?
当我打电话给了你时，你正在做什么？
and the more difficult it is, the more highly it is regarded.
他们认为， 道路愈艰险愈带劲儿。