上のぼり詰つめる

ichidan verb, intransitive verb

climb to the top; reach the summit

Used for physically ascending to the highest point of a mountain, stairs, or a tall structure. Often implies completion of the climb.

• 富ふ士じ山さんに上のぼり詰つめるのは大たい変へんだった。

  Climbing to the top of Mt. Fuji was tough.

• 長ながい階かい段だんを上のぼり詰つめると、美うつくしい景色けしきが広ひろがっていた。

  When I climbed to the top of the long staircase, a beautiful view spread out before me.

ichidan verb, intransitive verb

be engrossed in; be infatuated with

Metaphorical use: being completely absorbed in a hobby, interest, or person, as if reaching the peak of enthusiasm. Often used with に.

• 彼かれは最さい近きん、写しゃ真しんに上のぼり詰つめている。

  Lately, he's been completely engrossed in photography.

• 彼かの女じょは彼かれに上のぼり詰つめて、他ほかのことが手てにつかない。

  She's so infatuated with him that she can't focus on anything else.