For example, did you know that 1 in 4 teenagers has tried marijuana?
比如,你是否知道4个青少年中就有1位曾经吸过大麻?
It is a curious coincidence that the day before his retirement, Mr.Page will have been teaching for a total of forty years.
佩奇先生退休的前一天正好是他执教满40年的日子,这真是奇妙的巧合。