如果在两天之内没使用的话，则应把它们扔掉。

Throw them out if not used within two days.

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他们建议，医生应把注意力集中在药物的耐受性，副作用，使用的便捷和价格上，而不是设法找到最有效的药物。

Rather than trying to find the most effective drug, doctors should focus on tolerability, adverse effects, ease of use and cost, they recommended.

youdao

青年们应把爱当成他们的课业、他们工作的意义，并在其中(“昼夜不停地探索、锤炼”)去使用那些给予他们的爱。

Only in this sence, as the task of working on themselves (" to hearken and to hammer day and night "), may young people use the love that is given to them.

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