The property is for rent with an option to buy at any time.
这房子供出租，但可随时买下。
《牛津词典》
2
The Canadian option is fast becoming a political wake-up call, "If our neighbors can buy drugs at reasonable prices, why can't we?"
加拿大的选择正迅速成为一个政治警钟：“如果我们的邻居能够以合理的价格购买药品，我们为什么不能？”
3
To avoid such a scenario, Lunt says Angel's project would have to operate at half strength; all of which reinforces his view that the best option is to avoid the need for geo-engineering altogether.