dà / jiā / dōu / zhī / dào / jī / bù / kě / shī / mǎ / shàng / kāi / shǐ / le / zhǔn / bèi / gōng / zuò

大家都知道机不可失，马上开始了准备工作。

Everyone knew that the opportunity should not be missed, so they immediately began preparing.