她未列入该编组使大家感到惊讶。Everyone was surprised at her omission from the squad.约有二千人编组成军加强防御工事.About two thousand men were ganged out to strengthen the works.首要者为决定总部幕僚最理想的编组.The first of these was determination of the most desira...
绳索滑轮系统a system of ropes and pulleys这块大石是用绳子和滑轮给吊起来的.The stone was lifted by means of a rope and pulley.工人把金属丝穿在滑轮上.The worker threaded the wire through the pulley....
You will find that answer only in the library of the cicadas.只有到蝉鸣图书馆里你才能找到答案.The boys were netting cicadas in the woods.男孩子们在林子里用网捕捉蝉.Only male cicadas chirp in late summer, and early autumn.只有雄性的寒蝉在夏末秋初时鸣叫....