many of these deals are in fact options with the onus on the investors to present firm development plans and to deposit downpayments before they actually secure title to the land
许多这样的交易实际上是期权，投资者有责任在获得土地所有权之前提交公司的发展计划并支付首付款
以上为机器翻译结果，长、整句建议使用 人工翻译 。