你知道冰冷的定义是怎么来的吗?
) S/ x4 c9 W) j# L5 {* O# c# E5 J* C; F0 j& P, A+ o9 c
International symbol for the freezer's too cold6 l% N5 ^2 D2 Y) q
7 ?& j6 }) f- S4 g- r% h- P5 A& X$ v
9 C" A/ M6 [' [7 m" b' d6 T+ e$ o
* K& m- I$ W' ~% H0 o2 m+ f
& B6 W! u, E7 K( o
+ Y5 Y1 U5 P, Y4 ]4 ?
: r+ u. w4 c" \6 }' d, |; E! y$ g9 E, I
|