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They listened carefully.
他们听得很细心。
youdao
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They listened carefully but they heard nothing.
他们仔细地听，但什么也没听见。
youdao
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They listened carefully and heard the strange noise again.
他们仔细听，又听到了奇怪的噪音。
youdao
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They listened carefully and heard the strange noise again.
他们仔细听，又听到了奇怪的噪音。
youdao