以[yǐ] 基本解释：
新英汉大词典：
- 以[yǐ]
- 动词- （用; 拿） use; take:
utilize our strong points to attack the enemy's weak points;以我之长，攻敌之短
set the general interest of fighting against the common enemy above everything else以共同对敌的大局为重
- 介词- （用; 拿） with; by:
convince people by reasoning;以理服人
present sb. with a bouquet赠以鲜花
- （依; 按照） according to:enroll students according to their merits;以成绩录取新生
open and close according to schedule;以时启闭
- （因） because of:not reject a saying because the speaker is what or who he is;不以人废言
not lose heart because of failure nor feel conceited because of success;不以失败自馁，不以成功自满
- （表示目的） in order to; so as to:so as to distinguish this from other cases;以示区别
in order to answer an urgent need以应急需
- （于; 在） at (a certain time); on (a fixed date):I returned on March the first.余以3月1日返。
- （放在单纯的方位词前，表示时间、方位、数量的界限）:twenty years ago or earlier;20年以前
(to the) north of the Huanghe River;黄河以北
- 连词- （跟 “而 ”用法相同） and; as well as:
raindrops pattering and wind rustling;淅沥以潇飒
The city wall is high and thick.城高以厚。
- 名词- （姓氏） a surname:
Yi Xiang以相
例句与用法：
Life can be likened to a journey with an unknown destination.
The teacher speaks with a husky voice.
He thinks she is in love with him, but it's only a dream.
She looked at him with hate in her eyes.
It is expected that John will be back by ten.
Provided/Providing (that) you clear your desk by this evening, you can have tomorrow off.
She did the job with great despatch.