encyclical
[名词]
an official letter written and sent by the Pope to all the bishops of Roman Catholic Churches

通谕, 教皇通函
encyclopedia
[名词]
a book or set of books that contains information on all branches of knowledge, or a particular branch of knowledge, typically arranged alphabetically by article title

百科全书, 辞典
blaze
[名词]
a bright, intense flame or fire that burns strongly and produces a lot of light and heat

火焰, 烈焰
secant
[名词]
a line that crosses a curve at least at two distinct points

割线, Secant线
Ex: By drawing secant, they could approximate the behavior of the curve between the points .
malleable
[形容词]
capable of being hammered or manipulated into different forms without cracking or breaking

可锻造的, 易成型的
mallet
[名词]
a hammer-like tool with a large wooden or rubber head used for striking or directing objects

木槌, 橡胶锤
composure
[名词]
a state of calmness and self-control, especially in difficult or challenging situations

镇定, 沉着

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