35.on order订购中；定制中；已订购但尚未交货的
The airlines still have 2500 new aeroplanes on order.这家航空公司仍有2,500架新飞机没有交付。
36.to order
(according to specifications)按照买方提出的要求
She now makes wonderful dried flower arrangements to order.现在她为顾客定做漂亮的干花插花。
(on request)承索；一经要求
Cars are stolen to order for clients.一经买主要求, 车子可以立即偷来。