英语翻译 只有全力以赴，我们才能按时完成这项任务

We can't get the task finished unless we devote ourselves to.强调若不全力以赴则无法完成任务。devote oneself to 全力以赴

We can finish this assignment on time as long as we do our best.

Only by trying our best can we finish this mission on time.

Only by making every effort can wen finish the task on time.
或者
Only by trying all out can we finish the task on time.

全力以赴: make every effort/try all out

we can finish this task on time just if we can try our best.

只有全力以赴，我们才能按时完成这项任务
Only go all out, we can complete the task on time