我曾想带他去钓鱼，但我不好意思对他开口。 I wanted to take him fishing but I was too timid to ask him.
矿车、煤车煤矿中在轨道上行驶的四轮、开口、盒状的运货车或铁制车厢 A four-wheeled, open, box-shaped wagon or iron car run on tracks in a coal mine.
拉链由平行的金属、塑料或尼龙的齿状物制成的，在开口临近边缘上被滑动的拉环锁住的紧扣物 A fastening device consisting of parallel rows of metal, plastic, or nylon teeth on adjacent edges of an opening that are interlocked by a sliding tab.
注入口容器用来接受或倾出东西的开口 The opening through which a container is filled or emptied.
"我知道你能说会道，所以你就别开口劝我买东西。" "I know you've got a smooth tongue, so don't even start to talk me into buying."
