- spare
- 多余: unnecessary; more than what ...
- 的: 4次方是 The fourth power of 2 i ...
- 抽出: draw out; select from a lot; ...
- 时间: time; hour
- 多余的: excrescent; expletive; gash; odd; otiose; postiche; redundant adjective; spare; superfluous; supernumerary; surplus; synchronized attribute is not needed (sann); uncalled-for; unwanted
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