separate 把原来连在一起或靠近的“分隔开来”,常与from搭配.
The Taiwan Straits separates Taiwan from Fujian.
台湾海峡把台湾和福建隔开了.
Please separate the white shirt from the colored ones.
请把白衬衫与其他颜色的衬衫分开.
divede 指把整体“划分”成若干份,常与into搭配.
The island is divided into two parts.
这个岛屿初分成两部分.