书籍 Face2face - 高级 - 6 - 6B 单元

sticking to principles of right and wrong conduct and moral standards

in a way that is not continuous or regular

used to show that one does not care if one's offer is accepted or rejected one will not negotiate further

an inconsistent and unpredictable approach or method with no clear pattern of success or failure

repeatedly going in one direction and then in the opposite direction

to bring about either success or failure for someone or something

used to indicate that something applies individually to every single member of a group or set

a part of something that is considered its most integral or essential component

on multiple occasions

a part of something that is considered its most integral or essential component

rapid and significant progress or improvement

repeatedly without pause or change