By this time, Jim was heading toward me and motioning that he had made a find.

到这个时候，吉姆是走向我和手势，他已找到了。

By this time, the risk of hepatitis in the use of plasma was fully appreciated.

到这个时候，使用血浆对肝炎患者的风险有了充分的理解。

By this time, a Lancaster bomber in reasonable condition was rare and worth rescuing.

到这个时候，状况良好的兰开斯特轰炸机实属罕见，值得抢救。

This is compared to half of students who had looked for a job by this time two years ago.

相比之下，两年前的这个时候，有一半的学生已经找到了工作。

By this time of life, be choosy.

已经到了这个时候, 就更不要将就了.

By this time, I am pretty beat.

这时，我累极了。

She must know her letters by this time.

现在她应当认识字母了吧。

By this time, the whole theater was empty.

这时，整个歌剧院已经人去楼空了。

By this time the ship had completely sunk.

那个时候，船已经完全沉下去了。

By this time, Revolution was in the air.

这次革命正在酝酿，