sacrifice the knights in order to save the queen (in chess); give up a rook to save the king (in chess); make minor sacrifices to safeguard major interests
Related Translations:
帅云霓而来御: now this color now that color now moving up now moving down
弃旧迎新: replace the old with the new; change the new for the old; denounce the old and hail the new; prefer new to old acquaintances; throw sb. over for a new acquaintance; turn back on sb. (lover