英语翻译they fear that the increasing tendacy to treat normal sadness as if were a disease is playing fast and loose with a crucial part of biology,求教句中with做什么成分,怎么翻译
问题描述：
英语翻译
they fear that the increasing tendacy to treat normal sadness as if were a disease is playing fast and loose with a crucial part of biology,求教句中with做什么成分,怎么翻译
答
其实with要么和动词搭配成词组，要么就是介词做修饰或者伴随。。
答
play fast and loose with sth.,不负责任的对待某物.play with 要连起来看.
他们担心这种将正常的悲伤看作是疾病的趋势,是对生物学中很重要一部分的不负责任.