Pì iong put uân-tûnguân-im (ing-gú: close central unrounded vowel) hi̍k-tsiá ko iong put uân-tûnguân-im (ing-gú: high central unrounded vowel)[1] sī tsi̍t-kuá gú-gên lāi-té sú-iōng ê tsi̍t-tsióng guân-im. Kok-tsè im-piau lāi-té tāi-piáu tsit-ê piau-im hû-hō tsiū-sī ⟨ɨ⟩, tō-sī tsah-ū "hîng-kòng" (橫槓) ê sió-siá jī-bú ⟨i⟩. Hû-hō hām siañ-im ê hîng-sik thong-siông lóng hông kiò-tsò tsah-ū hîng-kòng ê jī-bió ⟨ɨ⟩.
While the International Phonetic Association prefers the terms "close" and "open" for vowel height, many linguists use "high" and "low".(Eng-gí)
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