Collins Chinese Dictionary Plus (3rd edition), 2011:
worsen [
'w&:sn]
I vt 使变(變)得更坏(壞) shǐ biàn de gèng huài
II vi 变(變)得更坏(壞) biàn de gèng huài
在这些条目还发现'worsen':
在英文解释里:
become aggravated - decline - exacerbate - flare up - go from bad to worse - grow worse - make worse - poor prognosis - reduce - stabilize
中文:
加重 - 恶化