a pale moon and watery sun are known as prognostics of rain.
苍白月色和淡淡阳光是下雨的先兆。
a pale moon and watery sun are known as prognostics of rain.
苍白月色和淡淡阳光是下雨的先兆。
The prognostics of surface scrape on wheels is important for train safety.
车轮踏面擦伤的预示诊
车安全运行具有重
意义。
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