darkening
名词 darkening:
changing to a darker color
同义词:blackening
动词 darken:
become dark or darker
同义词:darken
become or make darker
tarnish or stain
同义词:darken
make dark or darker
同义词:darken
形容词 darkening:
becoming dark or darker as from waning light or clouding over
characterized by hopelessness; filled with gloom