hold input的相關資料：
臨近單詞
Holdar
hold
Hold-down and release mechanism
hold within limits and control.
holds loose papers or magazines.
hold a telephone conversation with
Hold drift of track-hold circuit
Hold one's judgment in suspense.
hold sb./sth. in abhorrence
Hold the stick against crosswind.
Hold down the enemy's reinforcements
Hold several class discussion about.
