overclouding
1. to overcloud one's pleasure with a serious question
一个严肃的问题破坏了愉快的心情
2. to overcloud for the failure of exam
因考试不及格而闷闷不乐
3. Then, suddenly overclouding all his features, he growled in a hoarsened rasping voice as he hewed again vigorously at the loaf
接着又骤然满脸戚容,一边重新使劲切面包,一边用嘶哑刺耳的声音吼着
4. to overcloud the sun
聚集的云层遮住了太阳