钻 (zuān): เพื่อเจาะ

The workers are using a drill to drill a hole in the wall, getting ready to install an air conditioner.

The geological team drilled a very deep well in the mountains and finally found groundwater.

He spends two hours every day delving into math problems, and his grades have improved quickly.

The thief slipped in through the window and stole the wallet on the table.

To research this topic, she buried herself in the library and stayed there all day.