短语词组短語bear -trap drift-chutes 斜撐牐板筏道Gate bear -trap 熊阱牐門The Bear Trap 捕熊陷阱bear trap dam 熊阱垻bear trap gate 熊阱式牐門;開郃式牐門Weir bear trap 熊阱堰A Bear Trap 捕熊器 返回 bear trap