不见得: not necessarily, not likely...
碰上: to run into, to come upon, to meet...
势必: to be bound to, undoubtedly will...
代替: to replace, to take the place of...
听见: to hear...
委屈: to feel wronged, to cause sb to feel wronged, grievance...
失灵: out of order (of machine), not working properly, a failing (of a system)...
公式: formula...
主席: chairperson, premier, chairman...
告诫: to warn, to admonish...