sideline
[ˈsaɪdˌlaɪn]
n.
副业，兼职;
（球场等的）边线;
（本业以外的）兼售商品;
局外人的观点;
vt.
使退出;
例句:
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Mr. Means sold computer disks as a sideline.
米恩斯先生以卖计算机硬盘作为副业。
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He found a seam running diagonally toward the sideline.
来自NEWYORKER
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It was quite a lucrative sideline.
这份兼职很赚钱。
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The stands were overflowing with farm and sideline products.
集市上农副产品非常丰富.
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Leigh Nicholson is an academic with a sideline in art.
来自THETIMES
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Smuggling to prisoners was the guards' sideline.
来自Malcolm X