| 单词 | forward motion |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔Magnus effect〕The force perpendicular to the forward motion on a spinning object moving through a fluid or gas, as that responsible for the curve on a curve ball.马格纳斯效应：当旋转物体通过液体或气体时，其所受到的垂直上举的力，而这也就是曲球会曲行的原因美国传统〔backwater〕A rowing or paddling stroke in which the oar or paddle is pushed forward, used to check a boat's forward motion or move it backward.倒浆：把橹或桨向前推以阻止船向前运动或向后移动的一种划船或摇桨方式美国传统〔motion〕He rocked the cradle with a gentle backwards and forwards motion.他轻轻地前后晃动摇篮。剑桥高阶〔pawl〕A hinged or pivoted device adapted to fit into a notch of a ratchet wheel to impart forward motion or prevent backward motion.掣爪，棘爪：一种枢轴或转轴器械，能与齿轮缺口或齿间吻合来前进或防止后移美国传统〔rush〕A sudden forward motion.冲，奔：突然的向前运动美国传统〔sail〕A piece of fabric sewn together and fitted to the spars and rigging of a vessel so as to convert the force of the wind into forward motion of the vessel.帆布：缝在一起置于船的圆材和索具上的一块布，用来使风力转化为船向前的动力美国传统He rocked the cradle with a gentle backwards and forwards motion.他轻轻地前后摇动着摇篮。剑桥国际 |
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