英语语法分析

It refers to both the overt and the unobservable language behaviors in communicating.

这指的是交际中显性的和不可观察的语言行为。

At distances greater than 10 femtometers, the strong force is practically unobservable.

在大于10毫微微米的距离处，几乎看不到强力。

Unlike an ocean wave, a wavefront or surface of constant phase is unobservable and undetectable.

和海浪不同，波阵面或固定相平面是不能观测和不能发现的。