Definition: to move somewhere smoothly Level: B2
他慢慢地摇下车窗，呼吸一些新鲜空气。
He slowly ___rolled ___down the window to get some fresh air.
一滴水珠从叶子上滚落到了地上。
A single drop of water ___rolled ___off the leaf and onto the ground.
晨雾开始从海上弥漫过来，笼罩了海岸线。
The morning fog began to ___roll ___in from the ocean, covering the coastline.
