It is easy to swim if another holds up your head.

有人扶着头，容易学游泳。

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Once you have performed your sink-downs, try some easy laps of swimming. Swim at a slow pace and imagine you have all day to get to the other end.

一旦你做完下沉练习，再尝试一些容易的游泳技巧，慢速游并想象你有一整天才能游到另一端。

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It is easy for him to swim across the river.

游过这条河对他来说轻而易举。

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"I choose what I eat or whether I smoke, what people have told us is they want help to swim with the tide rather than against the current to make the healthy choice the easy one, " he said.

BBC: Tax fizzy drinks and ban junk food ads, say doctors

Some smaller markets have even managed to swim against the tidal wave of global selling in the first few weeks of the year--no easy feat.

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