... higher-mid back rounded vowel 后高中圆唇元音；后次高圆唇元音 high-falling 高降 high-falling tone 全降调 ...
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滑油进口温度高降速l。
现在中国铁路电气化局的一名官员终于肯承认高铁降速是出于安全性考虑。
But now an official at China's Railway Electrification Bureau admits the slowdown was based on concerns over safety after all.
在卡南格拉主峡谷中，一位溪降探险者正从一个三段式的、每段都有150英尺高的瀑布上用绳子往下降。
A canyoneer descends by rope through one of Kanangra Main Canyon’s three 150-foot waterfalls.
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