That suggests they had bows and arrows , a sophisticated form of weapon .
这些箭头表明他们已经有了弓和箭这种较复杂的武器。
Avoid projectile toys , such as darts , bows and arrows , and missile-firing toys .
避免投射类的玩具，例如飞镖，弓和箭以及点燃弹射类的玩具。
Also , my friend said nobody bows to their grandparents .
同样，我的朋友说没有人会向祖父母鞠躬。
Some have even pointed out the anachronism of roman officers commanding soldiers who are wielding bows and arrows to " fire " ( a term that wouldn 't have been used until firearms were invented ) .
一些人还指出罗马军官指挥士兵用弓和箭来“开火”的不合时宜（在火器发明前不可能被使用）。
From the amazon last month , brazil 's indian agency released aerial pictures of painted men with bows and arrows who have had little or no contact with modern civilisation .
