?? 詞語組成解析
??? 情景例句
And they don't ask a married couple with no children Why don't you have any children?.
他們也不會問結了婚沒有孩子的夫婦“你們為什么不要孩子?”。
To dart through sky
突破陰霾的天空
and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.
我們必須把很長的鉆桿一節節地鉆入地下,然后再從地下拉出來。鉆桿頂部安裝的發動機帶動鉆桿旋轉,它的底部裝有鉆頭。