to be of use 顶用 ; 抵用
to be out of debt 不欠债 ; 不负债
to be of one mind 意见相同
to be of no use 不中用
Glad to be of service 很高兴为您服务
to be of great benefit 有很大的益处
They consider the plan to be of dubious benefit to most families.
他们认为这项计划对大多数家庭不一定有好处。
The witness's descriptions were too imprecise to be of any real value.
证人的描述太不明确,没有任何实际价值。
In crude terms , the causes of mental illness seem to be of three main kinds.
简略地说,导致精神病的原因看起来主要有三种。
He says they are too recent and not detailed enough to be of much use.
VOA: special.2010.05.25
You have to be of an age to be a fighting man. It's not necessarily defined for us.
必须达到最低年龄的要求,才能参军,不像我们现在这样
They simply weren't considered to be of the same status as the 24 books.
但这些作品和那24卷经书无法具有同等地位。
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