1、complex

复杂的;错综的

in-depth coverage of today's complex issues.

对时下一些复杂问题的深度报道

a complex system of voting.

错综复杂的选举体制

综合建筑群;综合大楼

plans for constructing a new stadium and leisure complex.

修建新体育场和休闲中心的计划

a complex of offices and flats.

商住综合楼

(通常指由于过去不愉快的经历而形成的)情结

I have never had a complex about my height.

我从来没有担心过自己的身高。

a deranged attacker, driven by a persecution complex.

患有受迫害妄想症、精神失常的袭击者

2、convert

(使)改变;更改;(使)转变

The signal will be converted into digital code.

信号会被转变为数字代码。

naturally occurring substances which the body can convert into vitamins.

自然产生的能被身体转化成维生素的物质

改造，改建(房屋等)

By converting the loft, they were able to have two extra bedrooms.

把阁楼改造一下，他们就可以多出两间卧室。

the entrepreneur who wants to convert County Hall into an hotel.

想把市政厅改建成旅馆的企业家

改造，改装(车辆或设备)

Save money by converting your car to unleaded.

将车改装一下，使用无铅汽油，这样可以省钱。

The programme to convert every gas burner in Britain took 10 years.

完成对英国所有煤气灶的改造花了10年时间。