姑娘们在练习徒手搏斗。
研究者认为,这是因为左撇子在徒手搏斗中更容易生存下来。
The cause for this, the researchers suggest, is that left-handers are more likely to survive hand-to-hand combat.
这些士兵花了几个月时间,以把体型训练成一生中最棒的,学习徒手搏斗,枪法,小组战术以及其它一些技能。
These soldiers have spent months getting into the best physical shape of their lives, and learning such things as hand-to-hand combat, marksmanship, small unit tactics and a variety of other skills.
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