1.indistinct a．模糊的，朦朧的(not distinct)；難以清楚辨認的(not clearly recognizable or understandable)

詞根記憶：in（不）+distinct(清楚的)--不清楚的--模糊的

例：Although the lines of competition are clearly defined in industries that are more established, they are blurred and indistinct in the Internet industry, as competing companies one day may be partners the next.

派生詞：indistinction (n．無差別：不清楚)

2.indistinguishable a．難區分的，不能分辨的(not distinguishable)

詞根記憶：in（不）+distinguish(區分)+able(能)--不能分辨的

例：The patients who underwent coronary bypass surgery but did not benefit from it were medically indistinguishable.

派生詞：indistinguishably( ad.不能識別地：無差別地)

同根詞：distinguished（a．著名的：高貴的）

3. individual a．單獨的，個人的(single; separate);n.個人，個體(single human being)

詞根記憶：in+divid(分割)+ual--分割開的--單獨的

例：Some individual firms in developing countries have raised their productivity but kept their wages low.

派生詞：individually( ad.個別地，單獨地)；individualist(n．利己主義者：個人主義者)

同根詞：division(n，分割：部門)

4.individualism n.利己主義，個人主義(a doctrine that the interests of the individual are or ought to be ethically paramount)

例：Influenced by Western individualism, these historians define a peculiar form of personhood: an innately bounded unit, autonomous and standing apart from both nature and society.

5.induce v．引誘(to allure, to tempt)；促使，引起(to cause)

詞根記憶：in+duce(引導)--引導--引誘

例：Charging households a fee for each pound of trash will induce residents to reduce the amount of trash they create.

派生詞：inducement(n．勸誘：動機)；inducing(a．產生誘導作用的)

6.indulge v.(in)享受(to take unrestrained pleasure in)；沉湎于(to immerse)；放縱(to give free rein to)

發音記憶：一打就急--放縱

例：When the current economic boom ends, consumers will still want to indulge in small luxuries.//Today's low gasoline prices make consumers willing to indulge their preference for larger cars.

派生詞：indulgence(n.放縱，任性)；indulgent(a．放縱的)

7.industrialization n.工業化(the development of industry on an extensive scale)

詞根記憶：來自industrialize(v.使工業化)

例：It is based on an underestimation of the time that married women spent on housework prior to the industrialization of the household.

同根詞：industrious(a．勤勉的)

8.industrialize v.工業化(to make industrial)

詞根記憶：來自industry(n.產業：工業)

例：The expected rise in the price of oil could be a serious impact to industrialized nations and could severely diminish the possibility to have an economy free of inflation.

派生詞：industrialization(n．工業化)

同根詞：industrial(a．工業化的)

9.ineffective a．無效的（not producing an intended effect)

詞根記憶：in（不）+effective(有效的)--無效的

例；Biocontrol agents may be ineffective in destroying targeted species.

派生詞：ineffectively( ad.無效地)

同根詞：effective(a．有效的)