flag-waving的音標為["fl?ɡ-w?vi?]，意思是揮舞旗幟。

速記技巧：可以結合單詞的發音來記憶，其中“fl”的發音類似于“旗幟”的“旗”，而“ag”可以聯想到動作，類似于“揮舞”。同時，可以將單詞拆分記憶，有助于更好地記憶。

Flag-waving的英文詞源可以追溯到古英語中的“flagrante delicto”，意為“在犯罪現場”。這個詞源于拉丁語，表示某人正在犯罪時被發現。

flag-waving作為動詞，意為揮舞旗幟，表達人們為某一事件或主題而熱烈歡呼或揮舞旗幟的行為。它的變化形式包括過去式和過去分詞形式的“flagged”和“flagged-off”，以及現在分詞形式的“flag-waving”。

相關單詞包括：

1. “flame-raising” - 意為引起熱烈反響或提高知名度的行為。

2. “flair-waving” - 意為揮舞天賦或才華的行為。

3. “wave-off” - 意為取消或中斷飛行。

4. “wave-tossed” - 意為受到波浪沖擊的。

5. “wavelet” - 意為波浪起伏的地區或海洋中的小波浪。

以上這些單詞都與“flag-waving”有著某種聯系，表達了人們熱情洋溢、揮舞旗幟的行為及其衍生出的各種含義。

常用短語：

1. flag-waving patriotism

2. wave the flag

3. national flag day

4. fly the flag

5. salute the flag

6. pledge allegiance to the flag

7. sing the national anthem

例句：

1. Many people wave the flag of their country on national day.

2. We salute the flag every time we hear the national anthem.

3. The government always tries to promote flag-waving patriotism among the people.

4. He always flags when he runs, but he still salutes the flag at the end of the race.

5. We should pledge allegiance to the flag and respect it.

6. The flag is a symbol of our country, and we should always sing the national anthem with pride.

英文小作文：

Flags represent our country and its values, and they inspire us to be proud of our identity and heritage. When we see the national flag waving in the sky, we feel a sense of belonging and unity, and we are reminded of our duty to uphold our country"s values and ideals. Flags also inspire us to be brave and strong, to stand up for what we believe in, and to work hard for the betterment of our country and ourselves. Flags are a symbol of our nation"s spirit, and they serve as a reminder that we are all part of a greater whole, and that we have a responsibility to uphold our country"s dignity and honor.