Declare war upon
向...宣战, 向...发动进攻, 表示反对...
🧩 词语组成解析
war
[wɔr]
n. 战争;战争期间;斗争;论战;
vi. 进行战斗，作战;同…处于交战状态;
upon
[ə'pɑn]
prep. 在…上面;当…时候;
🗣️ 情景例句
Hello, it's a pleasure to meet you.
你好， 很高兴见到你。
The modern farmer spreads the agricultural chemicals on the fields.
当今的农民
That depends.
看情况。