Rear part of a firearm or cannon behind the chamber.

• Area with the breechblock where a cartridge is loaded.

火器或火炮膛室之后的后部。

• 装填弹药的后膛与闭锁部位。

A garment covering the buttocks and hips.

• Usually breeches in the plural; singular is archaic.

覆盖臀部和髋部的衣物。

• 常用复数“breeches”；单数用法古旧。

The buttocks; the rear of the body. Archaic or dialectal.

臀部；身体的后部。古旧或方言用法。

A birth in breech presentation with buttocks or feet first.

臀位分娩，婴儿以臀部或脚先出。

Born in breech presentation; hips-first.

以臀位出生的；先出臀部的。

With the hips or buttocks coming out before the head.

臀部或髋部先于头部出来。

To fit or furnish a firearm with a breech or breechblock.

给火器安装后膛或闭锁块。

To dress in breeches or trousers; especially a boy, archaic.

给人穿上马裤或裤子；尤指给男孩，旧用。