| 词汇 | sine |
| 释义 | sineBrE /saɪn/ NAmE /saɪn/ noun (abbreviation sin ) (mathematics数学) the ratio of the length of the side opposite one of the angles in a right-angledtriangle that are less than 90° to the length of the longest side 正弦 ➡ compare cosine, tangent |
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