用in demand ,on demand 各造壹句句子，謝謝

in demand:非常需要的;受歡迎的. 例:You seem to be in great demand today.

解釋:妳如今似乎很受歡迎.

on demand:壹經要求, 例:The workers’demand for a 10% pay rise machines which dispense cash on demand.

解釋:工人要求提高工資10%可立即提款的機器.