I have just received a letter from my brother, Tim. He is in Australia. He has been there for six months. Tim is an engineer. He is working for a big firm and he has already visited a great number of different places in Australia. He has just bought an Australian car and has gone to Alice Springs, a small town in the centre of Australia.He will soon visit Darwin. From there, he will fly to Perth. My brother hasnever been abroad before, so he is finding this trip very exciting.
aɪ hæv ʤʌst rəˈsivd ə ˈlɛtər frʌm maɪ ˈbrʌðər, tɪm. hi ɪz ɪn ɔˈstreɪljə. hi hæz bɪn ðɛr fɔr sɪks mʌnθs. tɪm ɪz ən ˈɛnʤəˈnɪr. hi ɪz ˈwɜrkɪŋ fɔr ə bɪg fɜrm ænd hi hæz ɔlˈrɛdi ˈvɪzətəd ə greɪt ˈnʌmbər ɑv ˈdɪfərənt ˈpleɪsəz ɪn ɔˈstreɪljə. hi hæz ʤʌst bɑt ən ɔˈstreɪljən kɑr ænd hæz gɔn tu ˈæləs sprɪŋz, ə smɔl taʊn ɪn ðə ˈsɛntər ɑv ɔˈstreɪljə.hi wɪl sun ˈvɪzət ˈdɑrwɪn. frʌm ðɛr, hi wɪl flaɪ tu pɜrθ. maɪ ˈbrʌðər hasnever bɪn əˈbrɔd bɪˈfɔr, soʊ hi ɪz ˈfaɪndɪŋ ðɪs trɪp ˈvɛri ɪkˈsaɪtɪŋ.
Australia /ɔ'streiljə/ s 后的tr 应该浊化，读dr，我只是记得s后的清辅音要浊化，不过这会儿百度了一下，知乎里有这段话供参考，英音和美音有差别，查了下觉得是这样，如果单词开头就是s+清辅音，该清辅音必然浊化。如果句中出现，s+清辅音的音节如果重读（有重音符号 ’）那么美音一般都浊化，英音不浊化，不过有时也不一定。
