活塞上涂了一层石墨以减小摩擦力。The pistons are graphite-coated to reduce friction.咱们用车床车[加工]新的活塞吧.Let's get the lathe to turn the new piston.他们改用活塞发动机.They use a piston engine instead....
基喋喋不休地谈论着那些对旅游业作出贡献的了不起的人物。Key burbled about the wonderful people who contribute to tourism.他被班里评选为“为耶鲁作出最大贡献”的人。His class voted him the man "who had done the most for Yale."这一獎项是对她为本行业所作贡献的迟来的表彰.The award is being made ...
有健康和均衡的饮食to have a healthy, balanced diet均衡的食物使你的身体获得营养.A balanced diet provides nutrition for your body.均衡的食谱是防止营养不良的保证.A balanced diet is an insurance against malnutrition....