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1·This juice would be useful for pain.

这种汁液对止痛有帮助。

2·This can be useful for businesses such as restaurants and stores because it offers a new way to attract customers.

这对餐馆和商店等企业很有用，因为它提供了吸引顾客的新途径。

3·These methods may be useful for a while, but it is difficult to solve this problem completely.

这些方法可能暂时有用，但要完全解决这个问题是很困难的。

4·This might be useful for legacy websites.

这对于遗留站点来说非常有用。

5·This can be useful for simple debugging or logging.

这对于简化调试或日志记录是非常有用的。

6·So I thought this might be useful for you to remember.

我认为这对帮助你们,记忆很有用。

7·It's something that we think would be useful for our customers.

我们认为它对顾客非常有用。

8·It can also be useful for determining whether the flow works.

对于决定流程是否能够发挥作用，这一点也十分有用。

9·This might be useful for performing system maintenance tasks.

对于执行系统维护任务，这一点可能很有用。

10·This can be useful for fine tuning queries and locking them down.

这在优化查询和锁定查询时可能较为有用。