v. make calm or still
v. become quiet or calm, especially after a state of agitation
s. not agitated; without losing self-possession
a. (of weather) free from storm or wind
n. 平稳, 风平浪静
a. 平静的, 冷静的
vi. 平静下来, 镇静
vt. 使平静
1. She took a deep breath to stay calm during the exam.
她深吸了一口气，以保持在考试中的冷静。
2. The lake was calm and peaceful in the early morning.
清晨的湖面平静而宁静。
3. It's important to remain calm when handling difficult situations.
在处理困难情况时保持冷静是很重要的。