Nitrogen-fixer

nitrogen ['naɪtrədʒən]

n. [化]氮，氮气;

nitro硝基+gen出生，产生→氮

fixer

n. 定色剂, 定影剂, 毒贩子\\n[化] 定影剂; 定香剂; 固色剂; 固着剂; 固定剂

All right.

好。

I had never seen a grown man break down and cry.

我从未曾看到过一个这么强壮的汉子痛哭失声。

when they would be capable of providing information about traffic jams and suggesting alternative routes, when they would be used in hospitals to help doctors to diagnose illnesses, when they would relieve office workers and accountants of dull, repetitiv

计算机可以使办公室人员和会计免除那些枯燥、重复的劳动。