tpo24 阅读,一个句子看不懂啊,尤其是 as the sleeper waxes and wanes作何解?
tpo24 阅读,一个句子看不懂啊,尤其是 as the sleeper waxes and wanes作何解?
First,there may be a brief cessation or reduction of breathing when falling asleep as the sleeper waxes and wanes between sleep and wakefulness and their differing control mechanisms.
First,there may be a brief cessation or reduction of breathing when falling asleep as the sleeper waxes and wanes between sleep and wakefulness and their differing control mechanisms.
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你能帮帮他们吗