學個詞 Learn A Word: 3364 precipice 懸崖絕壁，或者危險的境地

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今天我們要學的詞是 precipice.

precipice 原是指懸崖絕壁，或者危險的境地。 With cellphones becoming more sophisticated, internet becoming faster, and VR headsets becoming cheaper, we are at the precipice of a whole new virtual world. 隨著手機越來越復雜，網(wǎng)絡越來越快，虛擬實景眼鏡越來越便宜，我們即將墜入一個全新的虛擬世界。

Officials with the Centers for Disease Control and Prevention announced recently that drug-overdose deaths in the US are on the precipice of declining for the first time in decades. 美國疾病控制和預防中心的官員最近宣布，美國因用藥過量死亡的人數(shù)正處在下降邊緣，這是數(shù)十年來次第一次。