我推开窗子，惊讶地发现当它打开的时候相当安静，完全没有卡住，一点儿也不像谁知道多少年没开过的样子。我深吸了一口相对比较干爽的空气。

I opened the window - surprised when it opened silently, without sticking, not having opened it in who knows how many years - and sucked in the relatively dry air.

youdao

太少的控制点，或过于密集的控制点，优化器可能会卡住，无法确定的观点。

With too few control points, or too closely spaced control points, the optimizer may get stuck, unable to determine the viewpoint.

youdao