| 释义 |
[/ˈfɑːstnɪs; US ˈfæs-; ˋfæstnɪs/] n [U] quality of being fast2(2) 不褪色: We guarantee the fastness of these dyes. 我们担保这些染料不褪色. fastness 2 [/ˈfɑːstnɪs; US ˈfæs-; ˋfæstnɪs/] n fortified place that is easily defended; stronghold 堡垒; 要塞: a mountain fastness 山寨. |