现在你应该感觉更有活力，更加敏锐。 如果你发现耳朵的某个部位一触即疼或者对触摸敏感，你可能愿意花几分钟时间针对这个点给予温柔的循环按摩。

If you notice some areas of your ears are sore or sensitive to touche you may wish to spend a few moments giving this spot a gentle circular massage.

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接下来的几周，我都对外界保持着敏锐的目光（也包括耳朵），但也只发现我的一个朋友表示她是一个Foursquare的粉丝，不过她是一个科技通，平常就很容易接受各种精巧小玩意。

Over the following weeks I kept a sharp eye (and ear) out, and only found one friend—tech-savvy and typically an early adopter of all manner of gadgetry—who described herself as a Foursquare fan.

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敏锐的耳朵是鉴赏音乐所必需的。

A keen ear is necessary to appreciate music.

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