Vocabulary consisting only from characters you are able to read
終生
しゅうせい
all one's life/lifelongleda1
無用
むよう
useless, futility, needlessness, unnecessarinessmix
試作機
しさくき
prototype (e.g. plane)mix
歩道橋
ほどうきょう
pedestrian bridgemix
代
よ
(1)substitution, (2)material, (3)price, (4)margin (e.g. for stapling, etc.), area required for something, (5)(arch) shiro (unit of land area equal to one-fiftieth of a tan; ~19.83 m.sq.); (6)cha mix