介绍:
感谢这位Z同学的经验分享，从之前的口语39，到如今的口语79，她到底经历了什么？需要对自己的发音做什么样的调整呢？
RA例子：
Tidal energy, also known as tidal power, is a renewable source of energy and a form of hydropower used to generate electricity from the energy of the tides. Though not currently widely utilised, due to high costs and limited availability, it can be called the energy resource of the future given the current rate of depletion of energy resources.
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