| 1. | Airplanes drag along a very thin shield of motionless air known as a boundary layer .
飞机拽着一层很薄的紧贴机面不动的空气一道向前运动，这层空气叫做附面层。 |
| 2. | Pull the ropes tight to stay the tent up
气垫船能高高升起停留，而不向前运动。 |
| 3. | They do not agree that time must always move forward
他们不同意时间必须总是向前运动。 |
| 4. | During the entire exercise , the horse , should remain ' on the bit ' , maintaining its desire to move forward
在整个后退的动作中，马仍然要保持 '受衔 '姿态，维持向前运动的欲望。 |
| 5. | Solids are carried along the cloth by the carrier belt and are washed and dried along the length of the filter
固体在由输送皮带带动的滤布上沿着其长度向前运动，然后进行清洗和干燥。 |
| 6. | In the collision that formed it , the stars mostly missed each other and went speeding ahead , relatively unimpeded
在形成子弹状星云团的撞击中，大多数恒星擦肩而过，且快速向前运动，几乎未受任何阻力。 |
| 7. | In the collision that formed it , the stars mostly missed each other and went speeding ahead , relatively unimpeded
在形成该星云团的碰撞过程中，大多数恒星彼此分离并且快速向前运动，几乎未受任何阻力。 |
| 8. | The hock , as the hind foot leaves the ground , should first move forward rather than being pulled upwards , but certainly not backwards
当后蹄离开地面时，飞节首先是向前运动，而不是向上提，当然更不会向后动。 |
| 9. | Gait / movement : free and active , neither loose nor tied . forelegs move well forward , without too much lift , in unison with thrusting action of hindlegs
步态/动态：自如活泼，不显松散和拘束。前腿自然向前运动，抬起不太高，与后腿动作协调。 |
| 10. | What the students will actually show is the net ( resultant ) motion on the student , which is the unbalanced geometric sum of all of these forces
如学生玩滑梯，同时存在向下的重力，滑梯产生的举力（与表面垂直并向上）和阻止身体向前运动的摩擦力和空气的阻力。 |
