A pin, rod, or crosspiece fitted or inserted into a loop in a rope, chain, or strap to prevent slipping, to tighten, or to hold an attached object.是什么意思_A pin, rod, or crosspiece fitted or inserted into a loop in a rope, chain, or strap to prevent slipping, to tighten, or to hold an attached object.在线翻译_英语_读音_用法_例句