今日学习材料：
/j/和/u:/
Seven hundred and twelve received CPR. Four hundred and thirty-nine received chest presses only. No mouth-to-mouth rescue breaths were given to them.
/j/是一个半元音，舌前硬腭半元音，发音时，双唇向两旁伸张呈扁平形，气流，从舌面语音二间通过，有轻微摩擦。
/U:/后元音，舌后部像软腭，抬起舌身后缩，舌尖离开下齿。双唇收圆，向前突出。“乌”的音，但是嘴更圆
感想
并没有多少想法了，现在一步一个脚印训练着。不敢怠慢
练习时间
15遍12分钟，听原录音20分钟
