"Busy as a bee" is an informal idiom that means to be very busy and active, doing many things at once. It's a way of saying that someone is constantly engaged in various activities. The phrase compares the person's activity to the work ethic of a bee, which is known for its hard work and constant movement.
This phrase likely originates from something that bees are known for i.e. being hard workers buzzing around while pollinating plants, collecting nectar, building hives… The saying actually dates back to at least the 14th century when Geoffrey Chaucer, the Father of English literature, first referred to this saying in a book called The Canterbury Tales.
- from Google with editing
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A big metal bird took us and hundreds of others from raining Montreal to sunny Paris, arriving yesterday early morning. But it’s only a short connection stop on the way to our next destination.
Due to flight delay, we had only one hour connection time: to pass transfer luggage security check, EU customs, and to take a crowded shuttle to another terminal.
So instead of saying Bonjour to Paris, I was busy as a bee, waving my boarding pass, keeping saying “sorry/thank you” to others who let us skipping the lines, and running no stop with a heavy backpack on shoulders, hoping to get the next flight gate in time and hold the plane for hubby, who thought we had no chance and so was behind with two carry-on luggage.
Thanks to “God”, we made it. 
Cheers to you all from Hamburg.
A few pics (I took using iPhone & iPad) below for your enjoyment:
1. From inside of Montreal museum of fine art
2. One of Montreal city libraries
3. Montreal city view
4. Goodbye Canada
5. Bonjour Paris
6. Hallo aus Hamburg
7. Backyard of our Hamburg stay (via booking.com)
8. meet Pete the cat @ our relatives' home
