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
I hope Grandpa's going to like living with us.
我希望爷爷喜欢和我们住在一起。
Please ask John to turn on the lights.
请要求约翰打开灯。
All these cats had one experience in common: they had fallen off high buildings, yet only eight of them died from shock or injuries.