他们用一台空气压缩机把大气中的空气吸进来, 加以压缩, 然后送入船舱.They used an air compressor to take in atmospheric air , compress it, and force it into the cabin.发电机 、 混凝土搅拌机和空气压缩机的吼声,震荡山谷.Generators, cement - mixers, air compressors shook the groun...
a grove of birch trees白桦树丛We found that birch bark could serve as paper.我们发现桦树皮可以作纸用.They've got a wonderful birch in the back garden.他们在后花园有一棵极好的桦树....
She has a knack of landing herself right in the soup.她老是让自己的处境很尴尬。"I have a knack for making friends, you know," she added meaningfully.“你知道，我交朋友有一套的，”她故意补充说。It's easy, once you've got the knack.你一旦掌握这个技能就容易了。...
获得高水平的英语能力to gain a high level of competence in English使你的工作保持在高水平上.Keep your work on a high plane.为更高水平的游泳爱好者新建的25米长的游泳池受到了大家的欢迎。The new 25 metre pool for more serious swimmers is a welcome addition....