xué / xí / rì / yǔ / shí / lǎo / shī / xiān / jiǎng / jiě / qīng / yīn / hé / zhuó / yīn / de / qū / bié

学习日语时，老师先讲解清音和浊音的区别。

When studying Japanese, the teacher first explained the difference between voiceless and voiced sounds.