certainly ['sɝtnli] 词频1 词根: cert

adv. 无疑;当然;确定;肯定;

💡 certain确实的+ly副词后缀，…地 → 确实地，一定地，当然地

"I shall certainly keep a beady eye on his behaviour."

近义：indeed, indubitably, inevitably, infallibly, assuredly, absolutely 反义：hesitatingly, hesitatively, indecisively, arguably, tentatively, wonderingly

expect [ɪk'spɛkt] 词频1 词根: spec

vt. 期望;预料;要求;认为（某事）会发生; vi. 预期;期待;怀胎;怀孕;

💡 ex出+pect=spect看→看出去→期待

"We expect writers to produce more and better works."

近义：wait, await, previse, bide, hope, contemplate

product ['prɑdʌkt] 词频1 词根: duc

n. 产品;结果;乘积;作品;

💡 pro向前+duct引导，带来→引出的东西→产物，产品

"With the help of this machine, we can make a new product."

近义：item, article

available [ə'veləbl] 词频2 词根: val

adj. 可获得的;有空的;可购得的;能找到的;

💡 avail利用+able能...的→有用的；有效的

"Doctors have an armoury of drugs available."

近义：approachable, obtainable, attainable, open, performable, possible

October [ɑk'tobɚ] 词频1

n. 十月;

💡 octo(eight)+ber→十月

"The students return in October for the start of the new academic year."

近义：oct, oct.