At length . To keep some one at arm length.

这是和某人保持一定距离的意思.

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So, they often keep material at an arm length.

所以让自己经常与物保持一定的距离.

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Leg of the short arm length, head forward.

腿短臂长, 头部前倾.

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The battle axe is usually an arm - length weapon borne in one or both hands.

战斧的柄长一般为一只手臂的长度,单双手持均可.

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For some idea of the Great Square's size, extend hand an arm length from your eye.

这四方形的大小可以说是从你的手臂和手掌伸展开到眼睛的距离.

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How far is one degree? It's roughly the width of a pencil at an arm length away.

那个一度的距离是多远 呢 ?大约是一支铅笔的宽度和手臂的长度.

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