英文 普通話 拼音字典

hello, i just started to pratice pinyin input, I saw many online dictionaries which they can translate the Chinese characters to Putonghua Pinyin.
for example: I input:"中國"and I've got the "Zhongguo" as the result

Is there a English/Putonghua Pinyin dictionary?
for example: I input "China" and i got the "Zhonguo" as the result.

Please answer me with the link, thanks.
Answers in Chinese and English are also fine, Xiexie!