The basic design self-aligning ball bearing is available with a cylindrical bore or, in certain size ranges, with a tapered bore (taper 1:12).

自调心球轴承的基本设计带有一圆柱孔，或者在某些尺寸范围内带一圆锥孔（圆锥1：12）。

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Bore and STROKEThe size of an engine cylinder is referred to in terms of the Bore and stroke.

发动机气缸的尺寸与内径和行程有关。

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Place and size of built-in fitting, and other reserved holes / bore.

预埋件、预留孔、预留洞等的位置和尺寸；

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Twelve faeries of more or less equal size bore the bier, and they waited while another dozen brownies hammered at the doorway to widen the exit.

NEWYORKER: A Tiny Feast

You also won't want to insult or bore him or her, so stay away from clothing (which requires you to guess your boss' size), politically oriented or religious gifts, money, personal care products or "adult" items.

FORBES: Careers