At first, he saw an arm reaching up through the debris.
一开始，他看到一只手从废墟中伸出来。
The adjacent modules connect through the link arm and the link handle.
模块间由偏转关节、连接柄、连接臂和仰俯关节进行连接组合。
First, put your arm through the sleeve, now put your head through.
首先，把你的手臂穿过袖子，现在把你的头穿出来。
The hole is too small; I cannot push my arm through.
这个洞太小了，我的胳膊伸不过去。
The pipe is too narrow, I can't push my arm through.
这管子太窄了，我的胳膊伸不过去。
The pipe is too narrow, I can't push my arm through.
这管子太窄了，我的胳膊伸不过去。
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