Externo-dorsal rays
[醫] 外背輔肋
?? 詞語組成解析
dorsal
['d?rsl]
adj. 背的; 脊的;背部的;背面的;
n. 射線；[俚]日光浴；光線（ray的復數）
??? 情景例句
Some people are afraid of flying, which limits their options when traveling.
一些人十分害怕坐飛機，這也就限制了他們旅行時的選擇了。
You should wear a something warm, It's chilly today.
你應該穿暖和一些的衣服，因為今天很涼。
The constitution guards the liberty of the people.
憲法保護人民的自由。