Jack: Are you as tall as your twin sister?

杰克：你和你的双胞胎姐妹一样高吗？

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I can't distinguish Jack from his twin brother since they look so much like each other.

杰克和他的双胞胎兄弟非常相像，我分不清他们俩。

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You'll find twin alarms for keeping couples happy, a front-panel display, iTunes tagging support, jAura speaker technology, an auxiliary line input (3.5-millimeter jack) and twin 4-watt drivers.

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"It must be very hard on the parents and particularly on the surviving twin, " her husband, Jack Phelan said.

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Jack Parker, their former coach and a twin himself, said sometimes he had to check Mike's right ear to tell the twins apart because Mike had a freckle there that Mark didn't have.

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