Fastness to dust
[化] 耐尘牢度; 耐灰尘色牢度
🧩 词语组成解析
fastness
[['fɑ:stnis]]
n. 要塞, 巩固, 迅速\\n[医] 抗拒性
to
[tu,tə]
prep. 向，朝着;到;关于;属于;
adv. 朝一个方向的;到某种状态;关闭;
dust
[dʌst]
n. 灰尘;（建筑物内、家具或地板等上的）灰尘;遗骸，尸体，人体，人;〈口〉金粉，粉末，粉剂，花粉;
vt.& vi. 拂（一拂），掸（一掸）;
vt. 撒（粉）于;擦去…的灰尘;擦灰;撢去;
🗣️ 情景例句
Nice to meet you.
很高兴见到你。
How long have you lived here?
你住在这里多久了？
He led me into his room and hurriedly hid a large parcel under his desk.
他把我领进屋，慌忙把一个大包藏到了桌子下面。