1.
An avant-garde movement or publication.
前卫派运动前卫派运动或出版物
2.
preorogenic craton
造山运动前稳定地块
3.
Also, make sure you are properly hydrated before, during and after the activity.
此外，在运动前、动中和运动后，要补充适量的水份。
4.
The Male Rowing\|athletices Hb s Change in Sports;
男子划船运动员运动前后血色素的动态变化
5.
tandem powered elevating scraper
前后动力升运式铲运机
6.
It moves, it vibrates backwards and forwards.
它在运动，前后震动。
7.
Forward movement or the rate of forward movement, especially of a ship.
前进速度尤指船向前的运动或向前运动的速度
8.
The position played by such a person.
前锋线前锋运动员活动的位置
9.
To move in or be subjected to precession.
产生进动向前运动或被驱向前
10.
To move back and forth alternately.
往复运动交互地向后、向前运动
11.
An alternating back-and-forth movement.
往复运动交互地前后运动
12.
Medical supervision Over Body Weight Reduction Before Competition;
赛前减体重对运动员运动能力的影响
13.
forward and backward movement knob
载物台前后运动螺旋
14.
You have to warm up before you go swimming.
在游泳前要做暖身运动
15.
In the forefront of the liberation movement.
在解放运动的最前锋
16.
a football player who throws a forward pass.
传球前进的足球运动员。
17.
You should loosen up (your muscles) before playing any sport.
运动之前应先放松（肌肉）.
18.
a basketball player who is dribbling the ball to advance it.
控球前进的篮球运动员。