to cross a river / to aid or relieve / to be of help
济
=
氵
+
齐
:
Joan of Arc (ji) accidentally knocked over the only water supply bottle (氵) In the space station's bathroom (Ø4) and now she's in big trouble. She uses the empty bottle as a drum to call for help (济), but it is of no use; she would need a gong instead. Unfortunately the drum is ready, but the gong is not (齐).
助
=
且
+
力
:
Mnemonic symbol: water wings helping you to learn how to swim.
Julian Giant Squid wants to learn how to swim and put on a lot of floaties in the space station's bathroom. As he hits the power button to inflate the high tech floaties remotely he forgot that there are still a lot of floaties left, stored in the shelf—he is reminded instanlty as also all of them inflate.