The day is doubtful.
胜负难料。
doubtful bill receivable
应收未决票据
doubtful debts provision
预提坏账准备
This is a doubtful battle.
这是一场胜负难测得战争。
to be doubtful about something
对某事有怀疑
a document of doubtful authenticity
真实性存疑的文件
allowance for bad and doubtful debts
坏账及呆账备抵
provision for bad and doubtful debts
坏账及呆账拨备
To be wary, suspicious, or doubtful.
怀疑的提防的, 怀疑的或可疑的
A doubtful claim doubtful prospects.
令人怀疑的索赔案令人可疑的前景
Im doubtful whether shes still alive.
我怀疑她是否还健在。
My doubtful hope and eke my hot desire
遮掩我迟疑的期盼和炽热的欲望，
He is an author of doubtful reputation.
他是一位名声不太好的作家。
I am doubtful whether he is still alive.
我怀疑他是否还活着。
The arrangement is of doubtful legality.
这项约定是否合法值得怀疑。
The ethics of his decision are doubtful.
他的这一决定是否合乎道德规范值得怀疑。
The propriety of her deeds was doubtful.
她的行为是否得体却是很可怀疑的。
I am doubtful whether she is still alive.
我难以确定她是否还活着。
The painting is of doubtful authenticity.
那幅画是可疑得原版作品。
Inchoation of the Doubtful Case of Houqifa
候气法疑案之发端
Bad debts and provision for doubtful debts
坏帐及计提坏帐准备
To be suspicious, apprehensive, or doubtful.
产生忧虑，担心或怀疑
Some Doubtful Points on Interference of Wave
波的干涉中的几个疑点
I have yet to check up some doubtful points.
我还得核实一些疑点。
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