B: the cartons are comparatively light, and therefore easy to handle.
纸箱比较轻，因而容易搬运。
Sure, we can handle your order. B: Boy, I'm really glad to hear that.
嗯，你的订单没问题。B：哇，听了真叫人高兴。
The bottom surface (5) is designed to contact a handle (b).
该底面(5)设计用于与手柄(B)接触。
The bottom surface (5) is designed to contact a handle (b).
该底面(5)设计用于与手柄(B)接触。
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