fastness
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 n fortified place that is easily defended; stronghold 堡垒; 要塞
a mountain fastness 山寨.
🗣️ 情景例句
Well,
嗯,
Do you have any brothers or sisters?
你有兄弟或姐妹吗?
You can see how it is now. I can't possibly wear it.