短语词组短语bear -trap drift-chutes 斜撑闸板筏道Gate bear -trap 熊阱闸门The Bear Trap 捕熊陷阱bear trap dam 熊阱坝bear trap gate 熊阱式闸门;开合式闸门Weir bear trap 熊阱堰A Bear Trap 捕熊器 返回 bear trap