1·I don't know about perfecting but they want at least to be able to communicate decently.
我不知道如何完善，但他们想要至少能够得体地交流。
2·CIBC is also perfecting the technique for breeding parasites that prey on "disapene scale" insects.
CIBC 还在完善培育寄生虫的技术，这些寄生虫以“disapene scale”昆虫为食。
3·I want us to take up the unfinished business of perfecting our union, and building a better America.
我希望我们担当起完善联邦这项未竟的事业，并把美国建设得更美好。
4·I want us to take up the unfinished business of perfecting our union, and building a better America.
我希望我们承担起完善我们联邦的未竟事业，建设一个更加美好的美国。
5·They focus on perfecting their skills at building a better hamburger rather than the skills of selling and delivering the hamburger.
他们只将注意力集中在提高和完善做汉堡包的技术上，却不注意提高有关汉堡包的销售和送货技能。