sought after
很需要的
all these skills are much in demand.所有这些技术都十分需要。
all these skills are much in demand.
所有这些技术都十分需要。
When presented for payment
即期票据：见票即付的票据，
a note payable on demand.一张见票即付的票据
a note payable on demand.
一张见票即付的票据
When needed or asked for
有求必应：处于被需要或被请求的时刻
fed the baby on demand.无微不至地照料婴儿
fed the baby on demand.
无微不至地照料婴儿