PB 《略》 passbook; 【社会学】 pattern of behavior; permanent base 永久基地; L. Pharmacopoeia Britannica (＝British Pharmacopoeia) 英国薬局方; L. Philosophiae Baccalaureus (＝Bachelor of Philosophy); picketboat; Plymouth Brethren; pocket book; Prayer Book; premium bond; Primitive Baptists; push button.