ruthlessness英美网络 无情; 冷酷无情; 冷酷; 无情的残酷; 残忍GREBNC.18979 / COCA.23338英英释义nounmercilessness characterized by a lack of pitySynonym:pitilessnessfeelings of extreme heartlessnessSynonym:crueltymercilessnesspitilessness双语例句