Type the word: (噪音)
n__se

Choose the word:

Choose the words that have "oi, oy" sounds:
(選出有oi, oy發音的單字)

Listen and choose:

Listen to the words, what are they in common?
(選出共同母音)

Listen to the words, what are they in common?
(選出共同母音)

Listen to the words, what are they in common?
(選出共同母音)