preliminary announcement的用法和樣例：
例句
用作名詞 (n.)
- Is this announcement the signal of better times ahead?
宣布的這件事是否預示往後日子越過(guò)越好了？ - The initial announcement of the decision to dispatch two senior envoys to Damascus came from Secretary of State Hillary Clinton during a visit to Jerusalem.
美國將派遣兩名高級官員在未來(lái)幾天內前往敘利亞，這可能預示奧巴馬政府中東外交努力的新方向。
