ninth
柯林斯詞典
1. ORD The ninth item in a series is the one that you count as number nine. 第9
...January the ninth. …1月9號。
...students in the ninth grade. …9年級的學(xué)生們。
2. FRACTION Aninth is one of nine equal parts of something. 1/9
The dollar rose by a ninth of a cent. 美元陞值了1/9美分。
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