雏燕

Medium 的含义是"介质",没有这种"介质"便达不到一定的目的 It tires not nor does it boast of its power; but belongs to the air, travelling it may be six thousand miles to and from its northern nesting home feeding its flown young as it flies and slipping through a medium that seems to help itspassage even when the wind is adverse.

它不知疲劳，也不夸耀自己的飞翔能力，然而它在空中十分自如，可以一直飞行6，000英里。飞向北方的筑有鸟巢的家乡以及从那里飞走，在飞行的过程中还要喂养已出窠的雏燕，甚至在顶风的时候也能够不费劲地穿过那似乎有助它迁栖的气流。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。