substantially
/-ʃəlɪ; -ʃəlɪ/ adv
1 considerably; greatly 可观地; 大量地
substantially improved 大为改善
They contributed substantially to our success. 他们对我们的成功做出了重大贡献.
2 concerning the substance(3) of sth; essentially 实质上; 大体上; 基本上
Your assessment is substantially correct. 你的估计基本正确.