pick at

吃一点点； 挑毛病

It can't pick up sound, or beep at us if something's wrong.(它又不能接收声音，又不能在事情不对劲儿的时候发出警报。)

You must pick at least one field to be a data field. Please check one or more fields to make available as data fields.(必须选取至少一个字段作为数据字段。请选取一或多个数据字段。)

Six birds have just been trained to pick up rubbish at a French historical theme park.(法国一家历史主题公园训练出了六只会自己捡垃圾的鸟。)

The trucks waited at the warehouse to pick up their loads.(货车在仓库等着装载货物。)

Historians will find things to pick at-how could they not in a whistle-stop journey through 600 years?(历史学家会发现有东西可写-他们怎么会在短暂逗留后停下600年的历史进程呢？)

We managed to pick up a few bargains at the auction.(我们从拍卖场买到了几件便宜货。)

Fish pick at the urchins, which feed on bits of algae.(鱼类吃海胆，海胆以小块的藻类为食。)

Don't pick at any scabs, which increases the risk of infection and can damage the design and cause scarring.(不要试图自行去除疤痕，这样会增加感染的风险，甚至损坏纹身的图案。)

The idea for the experiment came from observing the birds using tools to pick at random objects, such as a picture of a spider that was printed on some cloth.(这个实验的想法来自于观察鸟类使用工具随机挑选物体，比如在一些布上印有蜘蛛的图片。)

I have notice the squirrels along with me, love these. The chickens pick at them.(我注意到有松鼠跟着我，(它)喜欢这些(草莓)，小鸡也爱吃它们。)

verb

1. express a negative opinion of

e.g. She disparaged her student's efforts

Synonym: disparagebelittle

2. eat like a bird

e.g. The anorexic girl just picks at her food

Synonym: peck atpeck

3. pluck or pull at with the fingers

e.g. She picked nervously at the buttons of her blouse

Synonym: pluck atpull at

1. 少量地吃；吃一点点
If you pick at the food that you are eating, you eat only very small amounts of it.

e.g. Sarah picked at a plate of cheese for supper, but she wasn't really hungry.
萨拉晚餐时只吃一盘奶酪，但她并没有真觉得饿。