EG:I bought it on a lark .

我买这东西仅仅是试一试。

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"On a lark, I decided to take a long-exposure fluorescent image of a pre-hatchling salamander embryo," says Kerney.

“抱着随便玩玩想法，我决定对一个还没孵化蝾螈胚胎进行长时间荧光照射并观察了其图像，”克尼说。

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You can then blearily look at what Lark has been tracking: When and how often you woke up during the night, charted out on a sleep graph.

然后，你可以睡眼朦胧地查看Lark追踪的信息：夜里你醒了几次，什么时候醒的，都体现在一张睡眠图表里。

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Johansson designed these dungarees in 1997 on a lark, to give to his friends.

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Everything changed in the spring of his junior year, when on a lark he took a class about clay.

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On a lark I entered JOEZ in the quarterly stock picking contest at one of my favorite web communities www.

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