hard consonant

例句：

1. 1.The hard consonant sounds are difficult to pronounce.
   硬辅音听起来很难发音。
2. 2. He was able to identify the hard consonant sound in the word "cat".
   他能够识别出单词“cat”中的硬辅音声音。
3. 3.The hard consonants in the English language can be challenging for some learners.
   英语中硬辅音对一些学习者来说可能是有挑战性的。