to temporarily take over someone’s job or position
prendre temporairement le travail ou la position de quelqu'un (prendre temporairement le travail ou la position de quelqu'un)
"He will fill in as project manager while the current one is on leave."
"Il prendra temporairement le poste de chef de projet pendant que le titulaire est en congé." (Il prendra temporairement le poste de chef de projet pendant que le titulaire est en conge)
to deal with and gradually overcome stress
to allow oneself to feel and act with bravery
to stay calm and not show your emotions when under stress
to make yourself nervous or upset; to become tense or worrie...
to emotionally recover from pain, trauma, or loss
to tidy common files so everyone can use them easily