1·According to the researchers, the participants' phones apparently substituted for real friends.
按照研究人员的说法，参与者的手机很明显代替了真正的朋友。
2·He substituted as the typist in the office.
他代替做这个办公室的打字员。
3·For example, subsequent studies have later substituted a different mobile for the original to see if the infants can spot the difference, thereby testing whether or not they really remember.
比如，在后续实验用不同的旋转风铃代替了旋转的小车，看看婴儿是否可以分别不同，以此来测试他们是否真的记住了。
4·It substituted palm oil with the plasticizer DEHP, which is known to cause cancer.
它用增塑剂DEHP代替棕榈油，这都知道会导致癌症。
5·But the company was found to have substituted palm oil with the Di-phthalate, or DEHP, to cut production costs.
但是调查发现该公司用棕榈油代替邻苯二甲酸二酯（DEHP），来降低成本。