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
Never say die.
永不气馁!
What's the suggested retail price?
建议零售价格是多少呢?
Captain Fawcett's first passenger was a doctor who flew from Birmingham to a lonely village in the Welsh mountains.