Henderson 把两个发动机都发动了,结果只是让本来已经进入的咸水立马毁坏了发动机。 Henderson got both motors roaring主句 only to have the saltwater that had leaked in break them straight away....是only to引导的结果状语从句。表示意想不到的结果。 saltwater that had leaked in 是一个定语从句,saltwater是先行词。 而have the saltwater that had leaked in break them straight away....是have sb. do sth. 结构的变形。