胸有成竹

经过前期长达数月的大数据沙盘推演与多轮全要素实兵实装红蓝对抗实战演练，海军两栖编队指挥官在作战室面对突发战情胸有成竹。

jīng guò qián qī zhǎng dá shù yuè de dà shù jù shā pán tuī yǎn yǔ duō lún quán yào sù shí bīng shí zhuāng hóng lán duì kàng shí zhàn yǎn liàn, hǎi jūn liǎng qī biān duì zhǐ huī guān zài zuò zhàn shì miàn duì tū fā zhàn qíng xiōng yǒu chéng zhú.

After several months of big data sandbox exercises and multiple rounds of red-and-blue combat drills with all-factor real-life troops, the commander of the naval amphibious formation was confident in facing emergencies in the war room.