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3.详细解说
1.“afford”常与“can”、“could”或“be able to”等表示能力的动词连用，并通常出现于含有否定意义的句子中。“can/could/be able to afford (to do) sth.”表示“买得起…，支付得起…
，负担得起…，承担得起…”。例如：We can't afford to go on vacation this year.（今年我们没有足够的钱去度假。）Few people are able to afford cars like that.（没有几个人能买得起
那样的车。）I can't afford to buy a house.（我买不起房子。）We can't afford to wait any longer or we'll miss the plane.（我们可等不起了，不然会误了飞机的。）We can't afford to
make any mistakes at this stage in the project.（工程到了这个阶段，我们可承受不起任何的错误。）
