1 double-edged sword

2 classifier: 口 kǒu

3 classifier: 把 bǎ

4 classifier for blows of a sword

1 to defeat

2 to beat

1 invulnerable

1 to slap

2 to smack

3 to punch

1 to hit

2 to press

3 to strike (on the keyboard)

4 to click (a web page button)

1 lit. to strike a stone with egg (idiom); to attempt the impossible

2 to invite disaster by overreaching oneself

1 lit. a notch on the side of a boat to locate a sword dropped overboard (idiom); fig. an action made pointless by changed circumstances

1 lit. with swords drawn and bows bent (idiom); fig. a state of mutual hostility

2 at daggers drawn

1 the sword moves with side stroke (modern idiom)

2 fig. unexpected winning move

3 unconventional gambit

1 the sword moves like a dragon-fly (modern idiom)

2 fig. unexpected winning move

3 unconventional gambit