音标：[əbˈsɔ:biŋ ˈsʌbstəns] ；

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学英语单词

actual year basis

ammonitoid

atomic number 67

att(american telephone and telegraph company)

available nitrogen

Ayamonte

bacillus(pl. bacilli)

back step sequence

barium bisulfate

basion -bregma height

Baymicin