concentrate

2 篇文章
so he can concentrate with them on keeping fit and healthy.
Walden 21
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19 0 1

so he can concentrate with them on keeping fit and healthy. 所以它要做的只是保证它们健康精壮

healthy fit keeping he concentrate can with them so on and
That leaves the male six-plumed bird of paradise with time to concentrate on other matters
Walden 21
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19 0 1

That leaves the male six-plumed bird of paradise with time to concentrate on other matters 这也使得雄六羽极乐鸟 有时间去关心其它的事

matters concentrate bird six-plumed paradise leaves with time of other that male the to on
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