变色

1. change colour; discolour

♦ 这种墨水不会~。 This ink will not change colour.

♦ 脸不~心不跳 one's face does not change colour, nor does one's heart beat faster—without a trace of fear

2. change countenance; become angry

~镜 light-sensitive glasses~滤光器 variable-color filter; metachromatic filter