下位者以双脚锁住上位者的腰称之为封闭防御 (closed guard)，这是在综合格斗技里最基础的攻防，优点是下位者可以最确实的控制上位者找机会切关节技，缺点是要有挨拳的心里准备。
基于12个网页-相关网页
Semi-closed guard 半封闭安全防护罩
Rear safety guard not closed 背面安全门未关
guard closed position 防护装置的关闭状态
guard closed pos ition 防护装置的关闭状态
Nozzle guard not closed 喷嘴安全门未关
Semi-closed guard protection, safe and reliable.
半封闭防护，安全可靠。
At that point the guard blew the whistle, so I closed the carriage-door window and the train pulled away.
正当这时，警卫员吹响了汽笛，我就关上了车厢门上的窗门，火车刚好启动了。
The branch itself was closed for renovations, however, a security guard who heard noises from the basement confronted the robbers, who lashed him to a chair and told him not to move.
该分行当时因装修而停业。 一名留守的警卫在听到地下室的响动后同匪徒遭遇，他被绑到一把椅子上并被警告不要轻举妄动。
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