deficient

Plants grown in soil that is deficient in nitrogen often have yellow, stunted leaves.

(Chinese) 生长在缺氮土壤中的植物通常叶子发黄、生长受阻。

The safety report concluded that the bridge’s support structure was deficient and needed immediate repair.

(Chinese) 安全报告得出结论，该桥梁的支撑结构有缺陷，需要立即维修。