When people visit Switzerland for t

When people visit Switzerland for the first time, they look with great interest, not only at the mountains
but also at a type of clock-a Cuckoo-clock, on sale there. Cuckoo-clocks are very popular with tourists
looking for a souvenir. A Cuckoo-clock has a small painted cuckoo that comes out near the top of the clock
every half an hour and says, "Cuckoo". Every hour it comes out and says "Cuckoo" the right number of times.
It does not get a sore throat at midnight or mid-day! Children find these clocks wonderful. Adults gradually 
get annoyed because the cuckoo never misses an hour or a half hour, and this makes a short sleep in an
armchair rather difficult. 
     In Europe, the cuckoo's call is a welcome sign that summer is on the way. This is the time when the 
mother cuckoo flies round, looking for a nest (巢) to lay one of her eggs. She chooses a nest belonging to 
another bird which already has eggs. When the nest is left unnoticed for a minute or two, the cuckoo rushes 
down, lays an egg and hurries off. In this way, she may lay her eggs in as many as four different nests. not
one of which has been built by herself.  
     When a cuckoo egg hatches (孵化), the baby bird is bigger and stronger than the other nestlings. Step by
step, it pushes other baby birds and any unhatched eggs out of the nest. In this way, it receives all the food
from its foster-parents (养父母) and has a better chance of surviving.

結果 (中文) 3:

当人们第一次访问瑞士时，他们不仅在山上看起来很有兴趣而且在一种器件的布谷鸟钟，在这里出售。杜鹃钟很受游客欢迎寻找纪念品。一只杜鹃钟有一个小的画出来的杜鹃，靠近钟的顶端每半小时说：“杜鹃”。每小时出来，并说“杜鹃”的次数。在午夜或是一天，它不会喉咙痛！孩子们发现这些时钟美妙。成人逐渐 因为杜鹃不想错过一个半小时或半小时，这使一个短暂的睡眠在一个 椅上相当困难。    在欧洲，杜鹃的电话是一个值得欢迎的迹象，夏天来了。这是当时的 母亲的布谷鸟飞来飞去，寻找一个巢（巢）奠定了她的一个鸡蛋。她选择了一个窝，属于 另一只鸟已经有蛋了。当鸟巢是忽视了一两分钟，布谷鸟冲 下来，奠定了一个鸡蛋，赶紧走开。这样，她可以将她的蛋放在四个不同的巢中。不其中一个已经建成了。      当杜鹃卵孵化（孵化），鸟宝宝比其他雏鸟做大做强。一步一步步，它把其他鸟宝宝和任何未孵化的蛋从巢里。以这种方式，它得到所有的食物从其养父母（养父母）和有更好的生存机会。