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We built banks to hold back the flood waters.; I could not hold him back：阻止,抑制,踌躇

E get hold of 抓住 Take/get/catch hold of the rope, and we'll pull y... | I hold back 阻止,抑制,踌躇 We built banks to hold back the flood waters.; I could not hold him back. | I hold on 握住不放 ,等会...

back reef：后礁

矿床顶 back of ore | 后礁 back reef | 后坡 back slope

back water：回水

back stroke 回程 | back water 回水 | back weight 平衡锤

back water：挡水!挡水!桨挡水!桨挡水

back voltage 逆电压 | back wash 退水浪花 | Back water! 挡水!挡水!桨挡水!桨挡水!

Jump and turn back and kick side：腾空转身侧踹

原地转身侧踹 Turn back and kick side at the same place | 腾空转身侧踹 Jump and turn back and kick side | 回转踢 Back sweep

I'll run interference with the fourth estate：我去绊住这些第四阶级(指新闻记者)

All right, tell you what. You go round the back...|你可以绕... | I'll run interference with the fourth estate.|我去绊住这些第四阶级(指新闻记者) | You got my back? Your back is got.|- 你先去,我随后? - 你...

back-pedal：背弃

back-packing 背法 | back-pedal 背弃 | back-pinchedsaw 夹背锯

back-and-forth mode：前后扫描方式

back-and-forth bending test ==> 反复弯曲试验 | back-and-forth mode ==> 前后扫描方式 | back-angle ==> 反向角

back-and-forth movement：往返运动,往复运动

back welding || 封底焊 | back-and-forth movement || 往返运动,往复运动 | back-checking || 返回校验

back-and-forth bending test：反复弯曲试验

back-acting shovel ==> 反铲铲土机 | back-and-forth bending test ==> 反复弯曲试验 | back-and-forth mode ==> 前后扫描方式

phenol red：酚红,苯酚磺酞

phenol reagent 酚试剂 | phenol red 酚红,苯酚磺酞 | phenol red test 酚红排泌试验

accessory equipment：附件

accessory equipment 辅助设备 | accessory equipment 附件 | accessory part 附件