大敵當前

大敌当前
dàdídāngqián
(idiom) to be faced with a formidable enemy

CEDICT

to be confronted with a formidable enemy

Wiktionary

面臨著強大的敵人。形容形勢嚴重，壓力強大。

重編國語辭典

Entry Composition

1 大敵 dàdí formidable enemy; archenemy
2 當前 dāngqián
  1. the present time
  2. to be faced with