2.2 反应时间对酯化反应的影响 » 2.2 reaction times to esterification response influence 护膝护肘 » Knee elbow pads 初中一年级的时候 » Junior first grade ..
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knee elbow pads
肘部护膝
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Of course, be sure they have on protective gear, including a helmet, knee pads and elbow pads.
当然，要确保他们有防护装备，包括头盔，护膝，护肘。
youdao
Don't forget your helmet, wrist guards, and knee and elbow pads.
不要忘记戴上头盔、护腕和护膝。
May I borrow your knee pads and elbow pads?
我可以借用一下你的护膝和护肘吗？
If you think elbow and knee pads might be restrictive,try wearing a cast.
VOA: special.2009.02.04
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