integral:being an essential part of something 必需的;不可或缺的 ~ (to sth)
Music is an integral part of the school's curriculum.
音樂是這所學校的課程中基本的一環.
Practical experience is integral to the course.
這門課程不可缺少實踐經驗.
overflow:the action of liquid flowing out of a container that is already full; the liquid that flows out 溢出;漫出;溢出的液體
Stop the overflow from the cistern.
止住水箱溢水.
an overflow of water from the lake
漫出的湖水
an overflow of powerful emotions
橫流的激情