Critics of the project speculate about how many hospitals could be built instead. [VERB prep.]

对该项目持批评态度的人在推测如果改作他用不知可以建多少所医院。

It would be unfair to Debby's family to speculate on the reasons for her suicide. [VERB prep.]

猜测黛比自杀的原因对她的家人来说是不公平的。

The doctors speculate that he died of a cerebral haemorrhage caused by a blow on the head. [VERB that]

医生推测他死于头部受击引起的脑溢血。

The reader can speculate what will happen next. [VERB wh]

读者可以推测下一步会发生什么事。

Big farmers are moving in, not in order to farm, but in order to speculate with rising land prices. [VERB prep./adv.]

大农场主正在不断涌进来，不是为了耕作，而是要利用不断上涨的地价进行投机。

The banks made too many risky loans which now can't be repaid, and they speculated in property whose value has now dropped. [VERB prep./adv.]

各银行贷出去太多高风险贷款，目前无法收回，他们还进行地产投机，而地产的价值目前已经下跌了。