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
Youth boredom is the main culprit behind youth crime.
年轻人的无聊是青少年犯罪最大原因。
They won't listen, so don't waste your breath telling them.
他们听不进去，不必和他们多费口舌了。
His answer was to lift the vessel out of the water by making it ride on a cushion of air,
他的解决办法是把船体提离水面，让船在一个气垫上行驶，