Needless to say, the weight room means gym.

Needless to say, 2 15lbs is about 97.5kg.

The key lies in this bench. The use of the bench as a verb can't be found in Oxford and Longman English-Chinese dictionaries, but I don't know that the bench here is only used as a verb.

Bench means benchpress in slang (probably also understood as the abbreviation of benchpress).

However, the problem comes again, bench press, also a noun, means lifting weights on a bench in the gym.

Wiki explained

Bench press is a kind of strength training. When lying on your back, the person doing bench press will lower the weight to chest level, and then push it up until the arm is straight and the elbow is locked (or close to this position).

Obviously, even bench press is a noun. The official story is

Someone (short for someone) does bench press.

However, the key point is that this sentence is a very casual language. As we all know, native English speakers like to use nouns as verbs, especially in slang.

For example,

At the earliest, I can only say.

I'm on vacation in Hawaii.

Now even the Oxford Dictionary uses holiday as a verb.

I'm on vacation in Hawaii.

So it's not hard to understand,

Bench press means bench press,

It means bench press,

Give an example of a foreign website.

The world record for sitting on the bench is about 728 pounds.

When bench is used as a verb, it is obviously a gerund form of bench.

The meaning of this sentence is

The bench press world record is 728 pounds.

All right, that's it.