The engineer hasn’t got time to track down the problem.‘To track down’ means to find out.

That is the existing product range. "produc...

判断题That is the existing product range. "product range" means product portfolio.

If you are stuck, change to a new point...

判断题If you are stuck, change to a new point.‘To be stuck’means to be sure of something.

The new launch date is very tight.‘Tight’ ...

判断题The new launch date is very tight.‘Tight’ here means not leaving enough time.