一手 (yì shǒu): Firsthand / one-handedly (Noun, Adverb) — Meaning & Stroke Order

He holds an apple in one hand.

She does not single-handedly control all the decision-making power in the company.

He held the documents in one hand and answered the phone with the other, looking very busy.

This teacher single-handedly founded this school.

This report provides firsthand information on market trends.