Vacillates
n. 摇摆( vacillate的名词复数 ); 振荡; 波动; 犹豫\\nv. 摇摆( vacillate的第三人称单数 ); 振荡; 波动; 犹豫
🗣️ 情景例句
Come on in, Mrs. Cooper.
请进 Cooper太太。
He gave her his word that he would never be late again.
他向她保证，绝不再迟到。
If the population keeps growing so quickly.
如果人口继续增长这么快的话。