Step 1:
EN: "pen"
HI: "पेन" (pronounced as "pen")
HI_TO_EN: "pen"

Step 2: 
"pen" and "pen" are the same, redo Step 1

Step 1:
EN: "bat"
HI: "बैट" (pronounced as "bate")
HI_TO_EN: "cricket bat"

Step 2: 
"cricket bat" and "bat" are not the same, proceed to Step 3

Step 3:
Short sentence with "EN" as the object: "She hit the ball with the bat"

Step 4:
Replace EN with HI: "She hit the ball with the बैट (bat)"

Step 5:
Output: "She hit the ball with the cricket बैट (bat)"