thinned out

• v. 减少(稀疏；变薄)

thinned out的用法和样例：

例句

1. The traffic had thinned out by then-we were out of London.
   我们出了伦敦之后交通就不那么拥挤了。
2. The population of the city was thinned out by the black death.
   这个城市的人口由于黑死病而减少了。