这个旧钟一文钱不值。
据Penguin, 2007《睡眠的神秘性、问题及对策》一文记录，像锯木一样巨大的鼾声能够惊醒打鼾者自己，但几钟后又再度入眠。所以他们次日可能不记得自己夜里惊醒过。
That's why they may not be able to recall the sleep disturbance when they wake up the following morning, according to "Sleep: The Mysteries, The Problems, and The Solutions" (Penguin, 2007)
十分钟的课间休息》一文由在线教育网收录整理。
During the ten-minute break, we do something to get rid of tiredness.
十分钟的课间休息》一文由在线教育网收录整理。
During the ten-minute break, we do something to get rid of tiredness.
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