'On'および'Upon'を使用した句動詞 - アクションの実行（時）

to have confidence that someone will fulfill one's wishes or requests

頼る, 信頼する

to depend on something for a particular outcome

依存する, つるす

to make a brief reference to a particular topic in the course of discussing something broader

簡単に触れる, 言及する

to make a choice or reach a conclusion after careful consideration

決定する, 選ぶ

to take advantage of someone's feelings, fears, or weaknesses

利用する, 扱う

to dedicate time and effort to produce or fix something

に取り組む, に精を出す

to encounter someone or something unexpectedly

出会う, 偶然見つける

to encounter suddenly or unexpectedly

偶然出会う, 突然遭遇する

to suddenly have a great idea

突然ひらめく, 急に思いつく