insufficient funds存款不足
insufficient memory内存空间不足[1]
1.I should tell you for certain, this is insufficient.
我要肯定的告诉你，这是不够的。
2.So, initially as you looked at it it was associated with insufficient coolant.
所以，最初你们观察它时，它是与,不足的冷却剂有关。
3.But it at each stage of development, are insufficient to improve it or add new performance.
但它每个阶段的发展，都是对它的不足而进行改进或增加新的性能。[1]