jump up and down
梁───beam;跳───jump
A burst of sunshine sent a beam of amber light through the window.───阳光透过窗户射进了一束琥珀色的光。
Be careful you don't knock your head on this low beam.───小心,别把头撞在这矮梁上。
Your calculation is way off beam.───你的计算完全错误。
Maybe it diligently looking for the flowers, through the many cement steel beam and busy busy street, finally is flying did not move.───也许它努力地寻找着花丛,穿过了许多的水泥钢梁和热闹繁华的大街,终于是飞不动了。
But when the rotary inertia of the hub is close to that of the beam, the zeroth-order approximation model may lead to wrong result.───但当中心刚体的转动惯量接近柔性悬臂梁的转动惯量时,零次近似模型将导致错误的结果。
So, you know, you're sending a laser beam, and you want to know what part of your beam is going to be in your given solid.───比如发射一道激光束,并且你想要知道,光束的哪个部分射入了给定的固体中。