constant的副词形式

　　Scientists are constantly developing new terminologies.

　　科学家不断发展新的`专门用语。

　　The sun is constantly evaporating the earth's moisture.

　　太阳使地球上的湿气不断蒸发。

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

　　我不断地生病，还伴有一大堆莫名其妙的症状。