他获得成功是可能的，但把握不大。
It is highly probable that he will take over his father's business.
成功是有可能的，但把握性不大。
他们有机会停下欣赏所见到的景物，但通常消费很理智，原因是对旅行的费用把握不大。
They have the opportunity to stop and look at anything they see, but may be careful about spending money, as they are not sure how much they will need for travelling around.
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