commutable
adj. 可取代的
1. subject to alteration or change;
2. capable of being exchanged for another or for something else that is equivalent
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, trench fever relapsing fever.
虱吸血还可传播各种流行病,体虱被认为是传播流行性斑疹伤寒 、 回归热和战壕热的主要媒介.