to accept a duty or task
взять на себя ответственность (vzyat' na sebya otvetstvennost')
"He decided to take on responsibility for the new client."
"он решил взять на себя ответственность за нового клиента." (on reshil vzyat' na sebya otvetstvennost' za novogo klienta)
to suddenly feel or show great happiness
to become frozen or stop working due to cold
to take an opportunity eagerly
to stay updated with the latest developments or innovations
to hide and wait for someone or something
to create a detailed outline for something new