I did put in a lot of efforts to help Chinese mathematics. On the other hand, I regretted very much that I still could not settle down in China.

我的确为中国数学花费了许多精力。但我依然为不能在中国安顿下来而感到遗憾。

youdao

If you manage to print and we can approve the printing quality, then we can investigate and put efforts in sourcing the fabric in China (or nearby countries).

如果贵司负责印花，我们可以通过印花质量，我们就可以调查并把精力放在在中国(或邻国)寻找面料上。

youdao