請根據以下信息，用英語寫一份關于北京植物園的簡介。

北京植物園(Beijing Botanical Garden)座落于北京西山腳下，是我國北方最大的植物園。它建于1956年，占地900畝左右。目前北京植物園有6000多種植物，其中包括一些稀有、瀕危物種和外來物種。每年大約1，400，000游客參觀，游客在欣賞美景的同時，豐富了植物學知識。

注意：1. 詞數：100左右; 2. 可適當增加細節，以使行文連貫。

One possible version:

Beijing Botanical Garden, which lies at the foot of the West Hill of Beijing, is presently the largest botanical garden in North China. It was built in 1956 and now it covers about 900 mu. In Beijing Botanical Garden there are more than 6,000 species of plants, including many exotic plants and some rare and endangered species. Beijing Botanical Garden is so beautiful that it attracts more than 1.4 million visitors every year. Not only can the visitors enjoy the beautiful scenery, but also they can learn a lot about botany in it.

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