He managed to burn the candle at both ends, despite the concern of those close to him.

他不顧周圍人的擔(dān)心，夜以繼日地工作。

語言點(diǎn)：concern
n. 關(guān)系；關(guān)心；關(guān)心的事
vt. 涉及，關(guān)系到；使擔(dān)心

at both ends
兩端

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