There is much uncertainty about what it will involve.

　　它將涉及的內容具有很多不確定性。

　　Having said all that, I do actually enjoy an element of uncertainty.

　　說(shuō)了這么多，我確實(shí)很喜歡不確定性。

　　If you say something like "this appears to be", it implies uncertainty.

　　如果你說(shuō)“這看起來(lái)是”，這意味著(zhù)不確定性。