cover with和cover by的区别
问题描述：
cover with和cover by的区别
The pathway was completely covered by the dense foliage.这里cover表隐藏，掩住，by引导媒介。
The field is covered with snow.这里cover表盖住，被动语态。
不太清楚这个区别。
答
cover with主要用在主动语态：i cover the table with cloth.
cover by 主要用在被动语态：the table is covered by cloth