向上兼容的

上的英语翻译：

ascending; go to; go up; previous; submit; superior; upper
【医】 ept-; hyper-; super-; supra-; sur-

兼的英语翻译：

concurrently; double; hold two or more posts concurrently; twice

容的英语翻译：

allow; appearance; contain; hold; looks; tolerate