miàn / duì / tū / fā / qíng / kuàng / tā / shǐ / zhōng / bǎo / chí / lěng / jìng / bìng / zuò / chū / le / jī / jí / fǎn / yìng

面对突发情况，他始终保持冷静，并作出了积极反应。

Faced with the unexpected situation, he remained calm and responded actively.