台Taivo A Taiwan Mandarin dictionary

潛艦

qiánjiàn

ㄑㄧㄢˊ ㄐㄧㄢˋ

Simplified 潜舰

Example

俄羅斯正向敘利亞派遣戰艦、海軍陸戰隊和登陸艇坦克，並向伊朗派遣潛艦裝備。

Eluósī zhèngxiàng Xùlìyà pàiqiǎn zhànjiàn hǎijūnlùzhànduì hàn dēnglù tǐng tǎnkè bìng xiàng Yīlǎng pàiqiǎn qiánjiàn zhuāngbèi

Russia is sending battleships, marines, and landing craft tanks against Syria, and submarine equiment against Iran.

Keep 潛艦 and it comes back until you know it.