I like doing puzzles at home.

我喜欢在家玩拼图游戏。

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These girls are doing puzzles.

这些女孩在拼图。

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So is doing puzzles or playing different kinds of word games.

如做难题游戏或者玩不同种类的词汇游戏。

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Some of you may enjoy doing crossword puzzles, and perhaps doing crossword puzzles a couple hours a day is enjoyable.

有人可能爱玩填字游戏，也许每天玩几小时的,填字游戏，依然让人兴致盎然。

耶鲁公开课 - 死亡课程节选

But imagine doing crossword puzzles every day for 10 years, 1,000 years, a million years, a billion years, a trillion years.

但想象往后每天做填字游戏，玩上十年，一千年以至永远。

耶鲁公开课 - 死亡课程节选

The best way to prevent dementia is to keep the mind active, whether it's by reading books, doing crossword puzzles, playing sudoku, or participating in other creative endeavors, says Kennedy.

CNN: Study: Ginkgo doesn't cut dementia risk

Ruma knew that the house, with the rooms her mother had decorated and the bed in which she liked to sit up doing crossword puzzles and the stove on which she'd cooked, was too big for her father now.

NPR: Excerpt: 'Unaccustomed Earth'

Reading, going to work and navigating a busy life may be enough to maintain brain health, but lifting performance takes massive amounts of practice--learning a new language, taking regular music lessons, doing complex jigsaw puzzles--to produce enough chemicals to make synapses stronger.

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