英語表現: by, until, tillの違い
by と until, till の違い
I have to prepare the presentation by 3pm.
３時までに〜
I have to prepare the presetation until 3pm
３時までずっと〜
until ~ till
till は untill の口語的表現．
・byに情報を加える
-I have to finish writing my business proposal by next Tuesday at the latest.
at the latest; 遅くとも
-Please submit the draft to me no later than Friday.
no later than; 遅くとも〜までに
（この場合，byは使わない）
-I’d like to get my order delivered by December 24th.
（期日までに届けばいつでも良い）
-I’d like to get my order delivered before December 24th.
（期日よりもなるべく早く届けてほしい）
-I’d like to get my order delivered on or before December 24th.
（できれば早く届けてほしい．）