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確実, かくじつ
NA-adjective
certain, sure, definite, reliable, sound, solid, safe, secure
これは遅いけど確実な方法だ。
See more > common
に
Particle
1. at (place, time), in, on, during
2. to (direction, state), toward, into
3. for (purpose)
4. because of (reason), with
5. by, from
See more > common