| 释义 |
fastness
UK ['fɑ:st.nəs] US ['fæst-] noun
FIXED 固定
uncountable
■how fast (= fixed) something is 牢固性；不褪色性•Test clothes for colour fastness before washing.清洗前要检查衣物是否会褪色。
UK ['fɑ:st.nəs] US ['fæst-] noun
SAFE PLACE 安全地方
countable literary
■a safe place, such as a fortress 要塞，堡垒•a mountain fastness山间要塞 |