nibble
[ˈnɪbəl]
vt.& vi.
啃，一点一点地咬（吃）;
vt.
啃出（洞），一点一点咬出（洞）;
vi.
慢慢减少;
小口咬;
（对提议、建议等）显出略有兴趣的样子;
表示对…稍感兴趣;
n.
轻咬;
显出有兴趣;
很少量食物;
例句:
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The birds cling to the wall and nibble at the brickwork.
鸟儿们紧贴在墙上，啄着砖缝。
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Instead of snacking on crisps and chocolate, nibble on celery or carrot.
不要把薯片和巧克力当零食来吃，要吃些芹菜和胡萝卜。
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We each took a nibble.
我们每人咬了一小口。
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Studies like this nibble at the image we have of ourselves.
来自SA
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They linger over the Tuscan reds and nibble on tomato-topped bruschette.
来自VOA
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Sample some of their tea-infused vodkas and nibble on a cheese plate.
来自CNN