You got kids like me who haven't hit their growth spurt yet mixed in with these gorillas who need to shave twice a day.

竟然把我这种还没到青春的小孩跟那些天得刮两次毛的“大猩猩”起。

Now during development, the fetus doesn't use the lungs yet, and relies on oxygenated blood from the placenta that comes into the right atrium.

胚胎，胎儿的肺还没有使用，其主要依赖于来自胎盘进入到右心房的氧合血。

He told the Associated Press that " the word was used in the 19th century in a medical sense, for the physical characteristics of a developing teenager."

他对美联社表示，“19世纪，这词汇被应用于医学领域，指的是处于的青少年的身体特征。”