- resemble ++ look like, be similar to
- reconize ++ perceive
- adjust ++ change
- preliminary ++ rudimentary
- coin ++ fisrt used
- artificial ++ synthetic
- prompt , initiate
- exchange ++ aplly a to b
- underlie ++ based on
- neglect ++ overlook
- fertilizer ++ toxic
- thanks to(原因，由于) ++ derive
- detect ++ seek
- alternative ++ substitude
- compensate ++ offset
- curriculum ++ syllabus
- feasible (可行的) ++ realistic, viable
- deficiency ++ defect
- supplement ++ provision
- analyze ++ diagnose
- emphasize ++ stree
- imitate ++ mimic
- impair (消减) ++ damage, diminish
- hinder （阻碍） ++ impede, prevent, deter, obstacle
- convention ++ method, tradition
- demanding (苛求的) ++ troublesome
- beneficial ++ wholesome
- chronic （漫长的） ++ lasting
- lessen ++ minimize
- imperative ++ compelling, necessary
- secrete (分泌) ++ discharge , exute
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