「鎮定」

(pos:形容詞)
<explanation>
yue:冷靜；情緒冇波動；唔會因為變故而慌亂
eng:calm; unruffled
<eg>
yue:遇到意外切記保持鎮定。 (jyu6 dou2 ji3 ngoi6 cit3 gei3 bou2 ci4 zan3 ding6.)
eng:Be sure to keep in mind to/Be sure to remember to keep calm even if an accident happens.