(距離が)~と同じくらい遠く, ~まで; (範囲はんいが)~する限り
I went with him as far as the station.
I went with him as far as the station.
私は彼と駅までいっしょに行った.
How far did we get last week?—We got as far as Lesson 5.
会話How far did we get last week?—We got as far as Lesson 5.
先週はどこまで進みましたか.—第5課まで進みました.
As far as I know, he is not a bad boy.
As far as I know, he is not a bad boy.
私の知る限り, 彼は悪い子ではない.
There were no trees as far as I could see.
There were no trees as far as I could see.
(私に見える限りでは)見渡わたす限り木は1本もなかった.