01515
Notes
Transcript
In China when they are digging a tunnel, they start at both sides, planning to connect in the middle.
If they meet, they call it a tunnel.
If they don’t meet, they call it two tunnels.
In China when they are digging a tunnel, they start at both sides, planning to connect in the middle.
If they meet, they call it a tunnel.
If they don’t meet, they call it two tunnels.