红旗的英文：
red flag

参考例句：

Red flags are fluttering on both sides of the rostrum.
主席台左右,红旗迎风飘扬。

The rostrum was decked out with palace lanterns and red flags.
检阅台上装饰着宫灯和红旗。

Our group was awarded a red banner.
我们小组被授予红旗。

The red flag flaunt in the wind.
红旗迎风飘扬。

A red flag is a sign of danger.
红旗是危险的信号。

The wind waved the red flag
风吹拂着红旗。

(symbol of revolution or communism)red flag
(象徵革命或共产主义的)红旗.

At the top of the building there is a red flag.
大楼楼顶有一面红旗。

The colour of the red flag has been dulled by age.
那面红旗因年深日久而褪色了。

The red flag was gone.
那面小红旗飘走了。

red是什么意思：
adj. 红色的；褐红色的；深红的；布满血丝的；支持左翼政治观点的；社会党的
n. 赤字；亏空

Red got his nickname for his red hair.
“红毛”的绰号源于他的红头发。

The sun will swell into a red giant.
太阳将膨胀为一颗红巨星。

red lake C pigment
色淀Ｃ颜料红

Iron oxide red pigments
GB/T1863-1989氧化铁红颜料

Roll out the red carpet.
热烈欢迎。

flag是什么意思：
n. 旗帜，国旗，信号旗；菖蒲；标志
v. 插旗；泄气，衰退；标示，示意

Show the Flag / Fly the Flag
亮相，露面，显示军事力量

strike the flag
降旗表示投降|降旗离职

They striked the flags.
他们降旗投降了。

They hoisted the flag.
他们升起了旗。

the national flag billowing in the bneeze
在微风中飘扬的国旗