1.The questionnaire will check to see if you could be suffering from depression.
suffer from患(某种病),受(某种病痛)折磨
Millions more suffer from serious sleep deprivation caused by long work hours.
另外还有数百万人因工作时间过长而睡眠严重不足 。
2.Statistics show that those who have symptoms of depression experience an average of a six- to eight-year delay in getting treatment after the onset of symptoms.
an average of平均
An average of 1500 persons pass here every day.
每天平均有1500个人经过此地 。