No matter how much someone wants to do something for you, they may not be able to due to internal constraints.

无论有人多么想为你做些事情，但由于内部的约束，可能都无法实现。

youdao

The shape may be a function of both the housing and internal constraints.

该形状可以是外壳及内部约束两者的函数。

youdao

So, we have, we're interested in the change in internal energy for various experimental constraints.

我们感兴趣的是,在各种实验环境约束下内能的改变。

麻省理工公开课 - 热力学与动力学课程节选

Even when innovation received initial support, it was frequently bogged down with business constraints and internal organizational struggles.

FORBES: Why Banking Is Broken - And How It Can Be Transformed

It is unclear whether this is due to a lack of available vendor solutions, or whether it simply reflects internal factors such as budgetary constraints.

FORBES: Written by Brad Reinboldt

Despite the fact the managers themselves write their own internal personal trading codes and these codes place only minimal constraints on managers, the opportunities presented to managers for personal profiting are so tempting that compliance with even the minimal requirements of these codes is often willfully ignored.

FORBES: Mutual Fund Personal Trading Illegalities: Letter to Barry Barbash, Director of Division of Investment Management, Securities and Exchange Commission (July 1, 1998)