deep blue的用法和樣例：
例句
- His enemy was close behind him, and the bridge over the ravine was rotten and swaying. Caught between the devil and the deep blue sea, he hesitated.
敵人就在背后，而前面橫跨在深谷之上的橋已經(jīng)腐朽不堪，搖搖晃晃。他處在兩難之中，猶豫了起來(lái)。 - The sky is deep blue.
天空是深藍色的。 - The sky was deep blue.
天空是深藍的。
