specialization/specialize/specialise
specialization/ˌspeʃəlaiˈzeiʃən/n. [u]特别化，专门化：The production line involves a high degree of specialization of labour.生产线要求工人高度专业化。There has been increase···
speciality/specialty
speciality/specialty/ˌspeʃiˈæliti/n.［c］1.专业，专长：choose one’s speciality选择专业；make a speciality of…专门研究…，以…为自己的专业2.特产，名产：a local speciality地方特···
species
species/ˈspi:ʃi:z/n.(pl.或sing.)种，类：The Origin of Species《物种起源》；an extinct species of fish一种已经灭绝的鱼；a species of shame一种耻辱
specific/specifically/specification/specify
specific/spiˈsifik/adj.1.明确的，具体的：according to specific circumstances根据具体情况；answer two specific questions回答两个具体问题2.特定的，特有的：a specific style of writin···
specimen
specimen/ˈspecimən/n.［c］1.标本，样本：collect insect specimens收集昆虫标本；some specimens of wild flowers一些野生花标本2.取样，样品：a specimen of urine (blood)尿(血)的抽样
spectacle
spectacle/ˈspektəkəl/n.［c］1.眼镜(pl.): put on(take off) one’s spectacles戴上（摘下）眼镜2.景象，壮观：a magnificent /splendid spectacle壮观；make a charming spectacle形成一幅···
spectacular
spectacular/spekˈtækjulə/ I.adj.壮观的，引人注目的：The sunset is spectacular — come and look.日落太壮观了，快来看。‖II.n.［c］壮观的演出：give a spectacular of horse riding进···
spectator
spectator/spekˈteitə; (AmE.) ˈspekteitə/n.［c］观众，旁观者：draw over 10000 spectators吸引1万多名观众There were many spectators at the football match.这场足球比赛有许多观众。
spectrum
spectrum/ˈspektrəm/n.［c］(pl.spectra) 1.谱，光谱：solar spectrum太阳光谱；an optical spectrum光谱；spectrum analysis光谱分析2.范围，幅度：the whole spectrum of industry整个工业范···
speculate/speculation/speculative
speculate/ˈspekjuleit/vi.&vt.1.推测，推断(about, on;作vt.时跟从句)：speculate about one’s motive推测某人的动机；speculate on one’s future思索某人的前程I was just speculating···
