就像大型机器里很小的钝齿一样，很难说我们都贡献了什么。

As smaller cogs in larger machines it may be difficult to tell what we're contributing.

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该齿对于压迫作痛，且有钝麻如咬的疼痛。 。

Thee tooth became sore to pressure and there is a dull gnawing pain.

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分梳罗拉针布上的针齿损坏或变钝。

Damaged or blunt wire points in opening roller clothing.

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