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 .

上个月巴西的印第安基金会发布了一些从空中拍摄的亚马逊流域照片：涂满色彩的男人拿着弓和箭，他们与现代文明很少或根本没有联系。