If sufficient rest is not included in a training program, imbalance between excess training and inadequate rest will occur, and performance will decline. The overtraining syndrome is the name given to the collection of emotional, behavioral, and physical symptoms due to overtraining that has persisted for weeks to months. It is marked by cumulative exhaustion that persists even after recovery periods.

　　sufficient adj.充分的, 足夠的

　　excess n.過度, 剩于, 無節制, 超過, 超額 adj.過度的, 額外的

　　symptom n.癥狀, 征兆

　　persist vi.堅持, 持續

　　cumulative adj.累積的

　　今天的作業就是翻譯下面4個句子^^,來試下吧

　　1.A single match will be sufficient to lightup a room the size of a football stadium.

　　2.Last years profits were in excess of one billion dollars.

　　3.A fever is a symptom of illness.

　　4.The storm persisted for a week.

　　答案：1.一只火柴足夠照亮足球場那么大的空間。

　　2.去年的利潤超過了十億美元。

　　3.發燒是生病的癥狀。

　　4.暴風雨持續了一個星期.