The front part of the body below the chest.

• The abdomen of a person or animal; informally, the tummy.

胸部以下的身体前部。

• 人或动物的腹部、肚子。

The rounded or bulging underside or central part of something.

• Used for parts like a plane’s underside, a sail, or a blade.

物体鼓起的下侧或中央部分。

• 用于如飞机腹部、鼓起的船帆或刀身弧面。

To swell, bulge, or billow outward.

• To make something swell outward.

鼓起、隆起或鼓胀。

• 使某物向外鼓起。