建议洗菜时第一步应该剥去蔬菜外层，因外层叶子上残留的农药比里面的多。
Recommend washing dishes at the first step should be stripped of vegetables for outer layer, the outer leaves residual pesticide on the inside of the more than.
食工系的老师说：精盐会使农药的化学键更稳定，那蔬菜上残留的农药就会锁在蔬菜上。
A teach of the Food Engineering Department said: salt makes pesticides more stable due to chemical bonds. Pesticide residues in vegetables will be locked in.
虽然 TDX 这款农药自20世纪60年代早期就被果农广泛使用，但自1960年起，一项生效的法规禁止销售任何可以检测到 TDX 残留的水果。
Although the pesticide TDX has been widely used by fruit growers since the early 1960's, a regulation in force since 1960 has prohibited sale of fruit on which any TDX residue can be detected.
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