Apha
abbr. 美国公共卫生协会（American Public Health Association）
🗣️ 情景例句
and she belongs to Mr. and Mrs. Levinson.
它是Levinson夫妇家的狗。
I don't know the exact date.
我不知道确切的日子。
But suppose the earth could be covered with sensors spaced one foot apart,
假设地球上可以布满传感器，每个相隔1英尺，