HOMELv019 The instructions provided with the device were so ( ) that few people could follow them. 2026年4月27日 装置に付属の説明書が非常に複雑(入り組んだ)だったため、理解できる人は少数でした。 The ( ) of the witness was questioned because of his close relationship with the victim. The scientist ( ) that the new drug would be effective in treating the rare disease.