backward-compatible反向: opposite direction; reverse; ...兼容: compatible反向兼容性: backward compatibility; downward compatibility横向兼容: transverse compatibility后向兼容: downward compatible下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:反向兼容，即可在微信中查询翻译
