indiscernible GRE

an indiscernible increase in temperature.

温度在不知不地上升

The transition was almost indiscernible.

那转变几乎不能。

Among the indiscernibles are absolute space, time and direction.

类至今尚未认识的事物中有绝对的空间、时间和方向。

The historical development of a language is hardly a sudden transformation of one language into another, but a gradual and constant process, often indiscernible to speakers of the same generation.

语言变化是一个缓慢的渐变的过程，其变化是同代所不易的。