习惯用语extend for1.延续...(距离)extend from1.从...伸出来extend from ... into ...1.从... 延伸[插]到...里extend from ... to ...1.从... 延绵[一直]到extend out1.伸出extend over1.延续...(时间), 遍布extend through ...1.贯穿..., 达到整个...的长度extend through to1.(一直)延伸到