大批
dà pī · HSK 6
large quantities of
📦 大 (big) + 批 (batch) = a big batch, i.e. large quantities
批 on its own means a batch or lot (as in 一批货 'a shipment'). Stick 大 'big' in front and you get 大批 — a big batch, used for large quantities of goods, people, or anything countable in bulk.
大 — pictograph of a person with arms outstretched
大 is a pictograph showing a person standing with arms and legs spread wide. The outstretched arms suggest 'big' or 'great', extending from the literal image of a large stance to abstract meanings like important or grand. It is one of the oldest characters, found on oracle bones.
批 — hand radical 扌 + 比 (compare, phonetic)
批 is a semantic-phonetic compound: the hand radical 扌 signals an action done with the hand, while 比 supplies the sound (bǐ → pī). Its original sense was to strike or slap with the hand, which extended to 'push aside,' then to 'judge' or 'comment on' (as in 批评), and finally to 'a batch' of things handled together.