例句：
He stood emotionless as he heard the judge pass sentence.
他面無表情地站在那里，聽法官宣布判決。
With characteristic impetuosity, he announced he was leaving school.
一貫性急沖動(dòng)的他又宣布要退學(xué)了。
She was planning to announce her engagement to Peter.
她正計(jì)劃宣布她和彼得訂婚一事。