我感觉喉咙里有痰。

I feel like there's ___phlegm in my throat.

我一直咳嗽，还有黄绿色的痰。

I've been coughing and have greenish-yellow ___phlegm.

在紧张的谈判中，他始终保持冷静与沉着。

During the tense negotiation, he maintained his ___composure throughout.