由某人负责，说了算的英文

• be up to sb

• 由:    cause; reason
• 某人:    a certain person
• 负责:    be responsible for; be in ch ...
• 由某人负责:    in/ under the charge of sb=in sb’s charge; on one's shoulders
• 不再由某人负责:    off one’s hands out of one’s hands; off sb’s hand