These medications should be used with extreme caution, as it is best if you train your body to fall asleep without additional aid.
这些安眠药必须谨慎使用，随着你可以很好的控制入睡就无需服用了。
Always take the long term view and train and race smart, with a bit of caution.
眼光要长远，聪明的训练和比赛，并且注重细节。
It is hereby to caution that smoking is strictly prohibited on this train except in the smoking section.
因为这是一篇告示性的文章，所以在开篇就应该说明禁止吸烟。
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