If you describe someone as methodical, you mean that they do things carefully, thoroughly, and in order.
例句
Da Vinci was methodical in his research, carefully recording his observations and theories...达·芬奇搞研究井井有条，会详细记录观察资料和理论学说。It seemed a sensible and methodical way of proceeding.这似乎是继续下去的一种明智而有序的做法。
英汉词典释义
adj.
有条理的, 井然的
Tom is a very methodical person.汤姆是一个非常有条理的人。
办事有条不紊的
A scientist is usually a methodical person.科学家通常是办事有条不紊的人。