growing tips of the plant

例句：

1. 1. The plant's growing tipsare green and healthy.
   植物的生长点是绿色的，健康。
2. 2. The scientist found the tipsof the plant to be vital for growth.
   科学家发现植物的生长点对于生长至关重要。
3. 3.The plant's growth tips were visiblethrough the soil.
   通过土壤可以看到植物的生长点。