1. The correct pronunciation of "胳膊" in English is "gē bó".

2. The word "gē" is pronounced with a hard "g" sound, which is similar to the "g" in "go". It is then followed by the vowel sound "ē", which is pronounced like the "a" in "cake".

3. The second syllable "bó" is pronounced with a soft "b" sound, which is similar to the "b" in "bubble". It is then followed by the vowel sound "ó", which is pronounced like the "o" in "go".

4. To pronounce the word "胳膊" correctly, it is important to remember that both syllables are equally stressed. The first syllable "gē" should not be emphasized more than the second syllable "bó".

5. In English, the word "arm" is often used to refer to the body part that is equivalent to "胳膊" in Chinese. The word "arm" is pronounced with a silent "r" at the end, and with a short "a" sound, similar to the "a" in "cat".

6. It is important to note that while "arm" and "胳膊" have similar meanings, there are some cultural differences in how the two terms are used. For example, in Chinese culture, "胳膊" is often used to refer to hugging or holding someone, while in English, "arm" is more commonly used in phrases such as "arm in arm" or "give someone a helping hand".

7. In conclusion, the correct pronunciation of "胳膊" in English is "gē bó". While the word "arm" is often used to refer to the same body part, there are cultural differences in how the two terms are used.