by the time
01
までに, 時には
used to indicate a point in time before which an action or event has occurred or will occur
例
By the time she finishes her degree, she will have learned a lot.
彼女が学位を終えるまでに、彼女は多くを学んでいるでしょう。
By the time they reached the theater, the movie had already started.
彼らが劇場に着いた時には、映画はすでに始まっていました。
