在加拿大的魁北克有一条南北走向的山谷。有心人不难发观,山谷的东坡上除了雪松几乎没有别的杂树;山谷的西坡则不然,那儿的雪松与女贞、柘树等生长在一起,共存共荣。究其原因,就是由于特殊的风向,每年冬天东坡上的雪总比西坡来得大,来得密,不一会儿,雪松上就落满了厚厚的一层雪。不过,雪积到一定的程度,雪松那柔韧而生机勃发的支丫便会向下弯曲, There is a north-south valley in Quebec, Canada. Intentional people are not difficult to make appearance, in addition to the cedar on the east slope of the valley there is almost no other miscellaneous trees; the western slope of the valley is not the case, where the cedar and privet, prickly ash and so grow together, coexistence and common prosperity. The reason is that due to the special wind direction, the snow on the east slope is always larger than that on the west slope in winter, so the cedar is covered with a thick layer of snow. However, the snow to a certain extent, cedar that flexible and vigorous support will be bent down,