sentinels的例句（sentinels在句子中的用法）

• Their pink buds , thrust up like arrows , seemed sentinels watching over Baiyangdian Lake. 粉色荷花箭高高的挺出来, 是监视白洋淀的哨兵吧!
• Sentinels stopped them, enquired, passed them. 哨卡拦阻他们, 盘问他们, 放他们通行.
• Sentinels were placed at all the approaches to the farm. 在去农场的所有路上都布置了哨兵.