请问“顺理成章”用英语怎么表达？

follow a logical train of thought.;
follow as a matter of course;
in a clear and ordered pattern;

这显然是顺理成章的。 This is undoubtedly logical.

他们顺利成章的结婚了
they got married naturally.

如果简单一些呢，用natural就行

follow a rational line