lag far behind的用法和樣例：
例句
- The small boy soon became tired and lagged far behind (the rest of the walkers).
那小男孩兒不 久就走不動了，遠遠落在(其他人的)後面。 - A Soviet crash program to catch up with the West in designing powerful new computers is beginning to pay off, but the Russians still lag far behind, according to industry reports.
根據電腦業報導，蘇聯為了在設計強力新型電腦上趕上西方所實行的緊急計劃，已開始收效，可是俄國人仍遠遠落後。
