Leukovorum
[醫] 亞葉酸, 甲酰四氫葉酸
??? 情景例句
You know airports.
機場的事你是知道的。
Give every man thine ear, but few thy voice.
要多聽少說。
What was the population of the less developed countries in 1950?
1950年不太發達國家的人口是多少？