1. The second floor where the two pull plug welding, installation, assembly pull each one, and pull supporting unicast ultrasound machines are four, for a total of four pull. 二楼设有插件焊接拉两条，安装，组装拉各一条，与拉配套的还有超声播机四台，共计四条拉。
2. Instead get in the attack position above the saddle stand bend at the waist pull back with the arms don't pull straight up or you will pull the front wheel off the ground. 正确的方式是采攻击姿势，屁股离开座垫，弯腰，手臂往后拉，但不可拉得太直，否则会把前轮拉离地面。
3. Extending coax muscle, pull-up, pull up in a cross way and pull down in a cross way etc. 具有十字下拉，十字上拉、髋部肌群训练等多种拉伸锻炼方式；可进行引体向上训练；
4. The lats have two basic functions as far as bodybuilding is concerned: They pull the shoulder back (a rowing motion) and pull the shoulders down (a pulldown or chinning motion). 谈到健美，背肌有两个基本功能：一来它们将肩膀往后拉（一个划行的动作），二来它们能将肩膀往下拉（一个折叠式或引体向上的动作）。
5. Cow split leather work gloves. PALM: full palm, patch palm, reinforced palm. BACK: cotton drill back, red and black stripe cotton back, denim back. CUFF : pasty cuff, rubberized cuff. 各类牛二层工作手套。手掌处可分为：全掌，驳掌，加托。袖口可分为：浆袖，胶袖。布背可分为：斜纹布背，红蓝条布背，牛仔布背。
网络释义
a back answer answer back backchat crack back retort talk back 顶嘴;
a back answer answer back backchat crack back retort talk back 顶嘴;
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on one's feet pull out pull through recuperate 恢复健康;
