この道具は実に役に立つ。

この道具は実に役に立つ。

This tool is of great use.

この道具(どうぐ)は実(じつ)に役(やく)に立(た)つ。

Kono dōgu wa jitsuni yakunitatsu.

此の (この)

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

道具 (どうぐ)

tool; implement; instrument; utensil; apparatus; device; means

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

実に (じつに、げに、まことに)

indeed; really; absolutely; truly; actually; very; quite

役に立つ (やくにたつ)

to be helpful; to be useful

Readings: ドウ、トウ、みち

Meanings: road-way, street, district, journey, course, moral, teachings

Readings: グ、そな.える、つぶさ.に

Meanings: tool, utensil, means, possess, ingredients, counter for armor, suits, sets of furniture

Readings: ジツ、シツ、み、みの.る、まこと、みの、みち.る

Meanings: reality, truth

Readings: ヤク、エキ

Meanings: duty, war, campaign, drafted labor, office, service, role

Readings: リツ、リュウ、リットル、た.つ、 -た.つ、た.ち-、た.てる、 -た.てる、た.て-、たて-、 -た.て、 -だ.て、 -だ.てる

Meanings: stand up, rise, set up, erect