Try to keep calm and just tell me what happened.

镇静点，告诉我出了什么事。

柯林斯例句

It is important to keep calm in an emergency.

情况紧急的时候，保持镇静是重要的。

《牛津高阶英汉双解词典》

Now that the situation becomes critical, one must keep calm.

事到临头, 要沉住气.

《现代汉英综合大词典》

Keep calm! Don't get flurried.

镇静些! 别发慌.

《现代汉英综合大词典》

Keep calm! Don't panic!

沉住气, 别慌!

《现代汉英综合大词典》

Keep calm. Don't get excited.

冷静点,别着急.

《现代汉英综合大词典》

Keep calm. Don't betray your identity.

沉住气, 别可露馅儿.

《现代汉英综合大词典》

Keep calm when problems crop up.

遇事冷静.

《现代汉英综合大词典》

Keep calm, whatever happens.

无论发生什么事都要保持冷静.

《现代英汉综合大词典》

She has done her best to keep calm but finds herself trembling with tension and indecision.

她尽力保持镇定，可还是由于紧张、犹豫不决而抖个不停。

柯林斯例句

While we were waiting to land, the air - hostess told us to keep calm.

当我们等待着陆的时候, 一位飞机乘务员叫我们保持镇静.

《用法词典》

She has the ability to keep calm in an emergency.

她有处变不惊的本事.

辞典例句

Keep calm: don't lose your composure!

保持镇静,不要慌张.

辞典例句

Keep calm. You shouldn't lose your composure.

保持镇静,不要惊慌失措.

辞典例句

Don't lose your head keep calm!

别惊慌失措的--沉住气!

辞典例句