Mnemonic symbol: a balloon. The Queen of Hearts is disappointed by her balloons. She expected them to float upwards, but in the space station's bathroom, They float randomly in all directions.
笼
=
⺮
+
龙
:
Lenny Lemur (lu) prepared dim sum in the engine's kitchen ((e)ng2). As the dragon (龙) smells the dim sum he wants to try some, but Lenny Lemur (lu) covers (笼) the flat bamboo basket (笼) with a bamboo stick (⺮) to prevent the dragon from stealing the dim sum.