sensitive
a.敏感的;神经过敏的;易受伤害的
a sensitive and intelligent young man一位善解人意、非常聪明的年轻人
sentence
n.句子;判决，宣判 vt.宣判，判决
It’s difficult to sum it up in one sentence.很难用一句话来概括。
separate
a.分离的;各别的 v.使分离;区分;分居
Use separate knives for raw and cooked meat.切生肉和熟肉要用不同的刀。
sequence
n.连续，接续，一连串;次序，顺序
Be careful to perform the actions in the correct sequence .注意要按正确的顺序来完成动作。
series
n.一系列，连续;丛书，连续剧
the series of events that led to the outbreak of war导致战争爆发的一系列事件
