騷客。眼迷離。

Which is right?

□1. We should extend our age level from 17 to 40.

□2. We should extend our age range from 17 to 40.

  1. We should extend our age level from 17 to 40.

○2. We should extend our age range from 17 to 40.

level是表示衡量級距中之某一特定點，range則表示兩點間之區域，本句中17至40之區間應用range表示。

"Level" refers to a single point on a scale, whereas "range" refers to a group that is included between two point on a scale. "17 to 40" is an example or a range.