原材料引用

CPR combines breathing into the victim's mouth and repeated presses on the chest.

[si-pi-ɑr] [k?m?ba?nz] [?brie??] [??ntu] [e?] [?v?kt?mz] [ma?θ] [?nd] [r??pit?d] [?pr?s?z] [ɑn] [e?] [??st].

信息與事實

?? ?輔音用來切隔語流

?? ?[p] [s]聲帶不震動

?? ?[b][z] 聲帶震動

?? ?[s]? 舌頭不頂牙齒?? ?

感受與評價

??[s]和[z]的發(fā)音單獨發(fā)起來不算難，結(jié)合詞匯和句子的話會經(jīng)常發(fā)串了。

累計的練習(xí)小時數(shù)：1.5小時。