精选400句托福阅读长难句(OG & TPO) 第一类 1. The same thing happens to this day, though on a smaller scale, wherever a sediment-laden river or stream emerges from a mountain valley onto relatively flat land, dropping its load as the current slows: the water usually spreads out fanwise, d...

时间:2025-01-26 19:37栏目:行业资料