His build and fist work make defense very difficult.

5 seconds sound clip from the Shaolin Kung Fu Master (1978) movie soundboard.

You can hear this line at 00:06:12 in the DVD version of the movie.

Quote context

[...]

- I was told he was unbelievably rich for a while, but then he was robbed a few years ago.

- So, who knows where Pei Lei is now.

- Ah, but I was talking about those five kung-fu men. Each one of them is most deadly. Those five Invincible Guards.

- Number two, Song Tian, has marvelous movements.

- He specializes in jumps and leaps, so his chosen style is monkey kung-fu.

- His build and fist work make defense very difficult.

- Number three, Chou Si Tiang, is an honest fighter. He's a big man and very, very strong.

- Number four, Wen Long, comes from the Eagle Claws School.

- His senses are as sharp as an eagle's claw, and he suddenly swoops on his prey.

- Eagle Claw kung-fu is dangerously unpredictable.

[...]