During this time when fewer natural foods are available and air temperatures are lower, extra feeding can keep a bird warm and well.
在这段时间里，自然中鸟类的食物越来越少，空气温度也越来越低，额外的喂养可以让鸟类保持温暖和健康。
In my free time, I'll listen to music, pop songs and go shopping with my friends, Sometimes I'll keep pets-maybe a colorful bird.
在我的空闲时间，我会听音乐，流行歌曲，和我的朋友去购物，有时候我会养宠物，也许会是一只色彩鲜艳的鸟。
If you're a birder, you want to keep a list of sightings when you bird watch.
如果你是一个拱，你要保持一份踪迹当你鸟观赏。
In my free time, I ll listen to music, pop songs and go shopping with my friends, Sometimes I ll keep pets-maybe a colorful bird.
在我的空闲时间，我会听音乐，流行歌曲，和我的朋友去购物，有时候我会养宠物，也许会是一只色彩鲜艳的鸟。
Despite its simple graphics, Flappy bird was a notoriously difficult game since many users could only keep the bird in the air for a few seconds before it hits an obstacle and falls.
虽然图像画面简单，但Flappy Bird游戏其实难度极高。许多玩家都只能让小鸟飞不到一会儿就撞到障碍物掉下去了。
Some animals can get further than these simple noises. For instance, a bird song is much more elaborate, for it tells other males to keep away, while at the same time inviting a female to come closer.
一些动物能发出比这些简单的声音更复杂的声音，例如，鸟儿的歌声就更复杂精细，因为它能告诉其它雄性鸟离开，同时邀请雌性鸟儿靠近。
A little bird told me you were turning 50, but I'll keep it a secret.
有人偷偷告诉我说你快五十岁了，但我会保守秘密的。
These precautions keep bird-strike fatalities surprisingly rare: in the past 20 years, only 219 people have died in American airspace as a result of bird impacts.
这些防范措施使撞鸟的不幸事件惊人地减少：二十年来，只有219人在美国航空区域死于撞鸟事件。
These precautions keep bird-strike fatalities surprisingly rare: in the past 20 years, only 219 people have died in American airspace as a result of bird impacts.
这些防范措施使撞鸟的不幸事件惊人地减少：二十年来，只有219人在美国航空区域死于撞鸟事件。
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