bulb angle bar

例句：

1. 1.The bulbs of the onion are the first to sprout.
   洋葱的球茎是最早发芽的。
2. 2. The plant is a perennial that produces bulbs for sale.
   这种植物是一种多年生植物，用于出售球茎。
3. 3. The bulbs were planted in the garden last spring.
   去年春天，这些球茎被种在了花园里。