1. labour 劳动, 劳力 The plan can saved much labour.
They earn their living by their own labour . a labour-saving machine
2. lack 缺A lack of food caused her to grow weak.
The plants died due to a complete lack of water. though/by/from/for lack of 由…缺乏
The flower died for lack of water.
lack sth = be short of lack money , be lacking in He is lacking in courage.
