Transliteration of Chinese family names (see List of common Chinese surnames) into foreign languages poses a number of problems. Chinese surnames are shared by people speaking a number of dialects and languages which often have different pronunciations of their surnames. The spread of the Chinese diaspora into all parts of the world resulted in the Romanization of the surnames based on different languages. Countries that have adopted the system of Chinese surnames such as Vietnam and Korea also spell them according to their own pronunciations. As a result, it is common for the same surname to be transliterated differently. For example, the Chen (陳) surname can appear as Chan (Cantonese, e.g. Jackie Chan), Tan (Hokkien), Tang (Teochew), Chin (Hakka), Trần (Vietnamese) and others; the Li (李) surname may appear as Lee (an example is Lee Kuan Yew), the Zhou (周) surname can appear as Chou, Chew, Jew and many others (e.g. Wakin Chau and Jimmy Choo); while the Zheng surname (鄭/郑) can be romanized into Chang, Cheng, Chung, Teh, Tay, Tee, Tsang, Zeng or Zheng (note that in pinyin, Chang, Cheng, Zheng and Zeng are all different names). In certain dialects, different surnames could be homonyms so it is common for family names to appear ambiguous when transliterated. Translating Chinese surnames from foreign transliteration often presents ambiguity. For example, the surname "Li" are all Mandarin-based pinyin transliteration for the surnames Lí (黎); Lí (李, 理 and 里); and Lì (郦/酈, 栗, 厉/厲, and 利) depending on the tone which are often omitted in foreign transliterations.