commutable的意思？

A pension is often commutable into a lump sum.养老金常可改为一次性总付款.The death sentence was commutable to life imprisonment.死刑可以由终身监禁代替.The bloodsucking louse also transmits various commutable diseases such as endemic typhus, tre...

commutable的音标：commutable的英式发音音标为：[kə'mju:təbl]commutable的美式发音音标为：[kə'mjutəbəl]...