What did Gulliver do after their ship crashed into the rocks?

After their ship crashed against the rocks, he swam as far as he could.

as far as one could 表示“尽某人所能地远”，使用“as + adj./adv. + as”结构。 This film is as interesting as that one is. 这部电影和那部电影一样有趣。 He speaks English as fluently as you. 他英语说的和你一样流利。