wave n. 波浪 (an area of moving water that is raised above the main surface of an ocean, lake, etc.) / weɪv/
v. 挥手 (to move your hand or something held in your hand, usually in a repeated motion in order to signal or greet someone)
waive v. 放弃 (to officially say that you will not use or require something that you are allowed to have or that is usually required) / weɪv/
waver v. 摇摆不定 (to become unsteady because of weakness, emotion, tiredness, etc.) /ˈweɪvə/
propitious adj. 吉祥的，吉利的 (likely to have or produce good results) / prəˈpɪʃəs/
propitiate v. 安抚 (to make (someone) pleased or less angry by giving or saying something desired) / prəˈpɪʃɪeɪt/
reserve v. 预订 (to make arrangements to use something at a later time) / rɪˈzəːv/
v. 保留储备 (to keep something for a special or future use)
reverse adj. 相反的 (opposite to what is usual or stated) / rɪˈvəːs/
v. 翻转，颠倒 (to change to an opposite state or condition)
reverberate v. 回响，回荡 (to repeat or echo (a sound)) /rɪˈvəːbəreɪt/
revere v. 尊敬 (to have great respect for (someone or something)) / rɪˈvɪə/