The phonetic symbol is a very important part of English study just like in our country every primary school student must learn Chinese phonetics first.
2
两种英语在音标、语法、词汇、拼写、标点、谚语、日期和数字的形式等等许多方面都有不同。
Differences between the two include pronunciation, grammar, vocabulary, spelling, punctuation, idioms, formatting of dates and Numbers, and so on.
3
这个中学生有许多英语单词发音不准,必须下狠工夫,学好音标,掌握标准的语音。
This middle school student can't pronounce many English words correctly. So, he has to take great effort to learn the phonetic symbols well and grasp standard English pronunciation.