Scientists are constantly developing new terminologies.

　　科學(xué)家不斷發(fā)展新的專(zhuān)門(mén)用語(yǔ)。

　　The sun is constantly evaporating the earth's moisture.

　　太陽(yáng)使地球上的濕氣不斷蒸發(fā)。

　　I was constantly ill, with a baffling array of symptoms.

　　我不斷地生病，還伴有一大堆莫名其妙的癥狀。