This is a prescribed course which spreads over two semesters.这是门两个学期学完的必修课.There are two semesters in a year.一年中有两个学期.Luckily, there are only two semesters a year.幸亏一年只有两个学期....
船长命令船员缩帆.The captain ordered his men to shorten sail.黑色的缩帆散开过海湾, 当潮流波浪跳跃时,不明显地出现.Black reefs scatter over the bay, appear indistinctly as the tide waves leap....
A forty-foot-high concrete wall encircles the jail.监狱周围有一圈40英尺高的混凝土墙。The concrete will stay as solid as a rock.混凝土会像岩石一样坚固。These targets consist of three mock airstrips and two concrete pads.这些目标分别由三条模拟机场跑道和两个水泥平台组成.It w...