on lease 根據(jù)契約；以租賃的方式。
on the lease 在租約上。這里lease noun [ C ]租約，租契。
=a legal agreement in which you pay money in order to use a building, piece of land, vehicle, etc. for a period
【例句】
He has the house on a long lease.
他長(zhǎng)期租用該公寓。
These machines are available only on lease.
這些機(jī)器只供租用。