| 单词 | si |
| 释义 | si /es aɪ/ abbreviationinternational system (used to describe units of measurement) 国际单位制◆si units such as the metre, the kilogramme and the second 诸如米、千克和秒等国际单位ⓘ si are the first letters of the french phrase système international.si 是法语 système international 的首字母缩写。☞ sisi/ˌes ˈaɪ ||; ˌɛs ˈaɪ/abbr (used to describe units of measurement 指计量单位) international system (from french ‘système international’) 国际单位制（源自法文système international）: ◇si units 国际单位 ☞look at expressions using numbers at the back of the dictionary. 参看本词典末数词用法部份。 |
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