bud stage

例句：

1. 1. The plant is in the bud stage, ready to bloom soon.
   这植物处于萌芽阶段，很快就要开花了。
2. 2.During the bud stage, the tree is very fragile and needs careful care.
   在萌芽阶段，这棵树非常脆弱，需要细心照顾。
3. 3. The scientists are studying the growth patterns of different species during their bud stage.
   科学家们正在研究不同物种在萌芽阶段的生长模式。