# roof ##### 词义 - 英:/ruːf/; 美:/ruːf/ - #词性/n 屋顶;车顶;顶部;有…顶的;洞顶;口腔顶部;隧道顶 - #词性/vt 给…盖顶;盖上屋顶 ##### 例句 - The limestone is sufficiently fissured for tree roots to have breached the roof of the cave - 石灰岩上有许多缝隙,故而树根能从岩洞顶部长出来。 - The roof of the tunnel fell in . - 隧道顶部塌了下来。 - The house needs attention but the roof is sound . - 房子需要修葺,不过屋顶还完好无损。 ##### 形态 - #形态/word_third roofs - #形态/word_ing roofing - #形态/word_done roofed - #形态/word_pl roofs - #形态/word_past roofed