motion n. 運動，動作 v. 運動
例句：Simon opened the door and motioned me to come in.
西蒙打開了門，招手讓我進去。

emotion n. 情緒，情感，感情
例句：I hate this kind of cheap emotion so I left him.
我討厭這種膚淺的感情，所以我離開了他。

emotional adj. 情緒的，情感的
例句：Steven's emotional language reduced many of the audience to tears.
史蒂文滿懷感的話語使許多觀眾流下眼淚。

motive n. 動機，目的 adj. 發動的，運動的
例句：The police have excluded robbery as a motive for the murder.
警方已排除該謀殺案中有搶劫的動機。

motivate v. 激發
例句：Every manager must motivate and encourage his employees.
每個管理者都必須激勵和鼓勵他的雇員。

stability n. 穩定性
例句：The government has taken a measure to maintain the stability of prices.
政府已經采取了措施以確保物價穩定。

stabilize v. 穩定
例句：The government took measures to stabilize prices.
政府采取措施穩定物價。

stable adj. 穩定的
例句：A stable government is essential to economic growth.
穩定的政府對經濟增長是重要的。