tremble/thrill/thriller/quake/shake/wag/swing
记忆：
1. tremble [ 5trembl ] To shake involuntarily, as from excitement, weakness, or anger; quake vi. 战栗, 发抖, 震动, (树叶等)摇晃 The boy trembled with fear. 男孩怕得发抖。
2. thrill [ Wril] v. 发抖 Stories of adventure thrilled him. 冒险故事让他发抖。
3. thriller [ 5WrilE ] n. 使人毛骨悚然的东西 Thrillers have come into fashion. 使人毛骨悚然的东西成了时尚。
4. quake [kweik] n. &v. 地震 The earth quaked and millions of houses fell. 大地摇晃着，数百万的房屋倒塌。
5. shake [ Feik] To cause to move to and fro v. 摇动, 摇, 颤抖 They exchanged their greetings by shaking hands. 他们握手互致问候。
6. wag [ wA^] To move briskly and repeatedly from side to side, to and fro, or up and down. vt. 摇摆, 摇动, 饶舌 The dog wagged its tail with pleasure. 狗快乐时摇着尾巴。
7. swing [ swiN] To move back and forth suspended or as if suspended from above. v. 摇摆, 摆动 n. 秋千 The kids are having a swing happily. 孩子们正在快乐地荡秋千。
另类阅读：
When the earthquake happened, the ground shook a lot, the lamp wagged like a swing, and people thrilled with trembling voices.