when the sky becomes covered with clouds
quand le ciel devient couvert de nuages (quand le ciel devient couvert de nuages)
"The sky clouded over, and we knew it was going to rain soon."
"Le ciel s'est couvert de nuages, et nous savions qu'il allait pleuvoir bientôt." (Le ciel **s'est couvert de nuages**, et nous savions qu'il allait pleuvoir bientôt.)
to calm yourself when feeling nervous or tense
to combine or work together with another system
to expand or grow the size or capacity of something
to hire additional people in preparation for something
to behave in a way that others should copy; to lead by examp...
to express gratitude in a respectful way