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
Thank you, Mr. Tom. The same to you.
谢谢,汤姆先生。也祝你圣诞快乐!
Her husband doesn't think she should continue working after the baby is born.