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- 马克。吐温写的作品你知道多少？
How much do you know about the works of Mark Twin.
- 马克是个不听话的孩子，我看他们现在对他的培养方面做得不错。
Mark's a difficult child and I think they're making a good job of bringing him up.
- 她曾经写信给马克吗？
Has she ever written a letter to Mark?
- 马克曾在密西西比河上当过领航员。
Mark used to be a pilot on the Mississippi River.
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