unceasing
adj. 不断的;不停的
例句
Planes passed overhead with unceasing regularity.
每隔一段时间总有飞机从头顶飞过。
《牛津词典》
Human society makes unceasing progress.
人类社会总是不断进步的。
So our efforts to find something, where we see nothing, are unceasing.
正因如此,我们在什么也看不见的地方,坚持不懈地寻找和发现东西。