Dorsal 后背

Dorsal. This term can be used instead of posterior and means the back side or upper side of something. The dorsal fin of a fish is located on the upper/back part of the fish as opposed to a ventral fin.

Ventral. This refers to something anterior in the body. It can also mean the lower aspect of the body (especially when referring to a four-legged animal). In humans, a ventral (hernia) is, by definition, located on the abdomen, in the anterior part of the body.

Dorsal 后背的

Posterior 后面的

Ventral fin 腹鳍

Dorsal fin 背鳍

Ventral 腹部 腹侧

hernia 疝气

Dorsal(后背的) 这个词用来代替后背或者某物体的后面或上面。鱼的背鳍位于上方和后方的位置，与腹鳍相对。

Ventral(腹侧的) 这个词是指身体前面的东西，也可以是指身体的下方(尤其是四足动物)，根据人类腹部(疝)的释义，它位于腹部，在身体的前部。