They've got sentries posted, and they are all armed.
他们设了岗哨,而且全都有武器。
sentisection:活体解剖
sentinel /步哨/看守者/哨兵/ | sentisection /活体解剖/ | sentry /步哨/哨/卫兵/看守/哨所/设岗哨/站岗/放哨/