doubtful of about的意思|示意

Because of a long drought, the farmers are doubtful about the prospect of a good yield.

由于长时间的干旱，农民们对能否获得好收成持怀疑态度。

The letter from that industrial administration engineer indicates that he is doubtful about the feasibility of the plan.

那位工业管理工程师的来信表明，他对该项计划是否可行有怀疑。

Smalling's got it, no doubt-at least in terms of big match mentality (something else I had previously been doubtful about).no longer.

斯莫林已证明了自己，至少——在大赛心理上(我曾质疑的一点)，毫无疑问。

Faced with the differences of opinions, we should be open with each other rather than feel doubtful about one another.

面对意见分歧，我们要开诚布公，而不是相互猜疑。

I 'm doubtful about the value of your proposal.

我怀疑你的提议是否有价值。

I am doubtful about the propriety of granting such a request.

我怀疑这个术语是否适当。