English Lesson:

Both “They have got pets” and “They have pets” have the same basic meaning, which is that they possess pets. However, there is a slight difference in emphasis between the two.　“They have got pets” is more commonly used in British English, while “They have pets” is more commonly used in American English. In British English, the word “got” is often used as a synonym for “have”, so “They have got pets” is a common way to express possession. In American English, “They have got pets” is more commonly used.　Additionally, “They have got pets” can sometimes be used to emphasize the fact that they have pets right now, or that they just acquired pets recently. In contrast, “They have pets” is a more neutral statement of fact. (ref: chat.openai.com)

Japanese Lesson:

The sentence 「かれらはペットを持っています。」(Karera wa petto wo motte imasu.) emphasizes that she is in possession of pets, using the verb 「持つ」(motsu) which means “to have” or “to possess”. This sentence is commonly used when you want to convey that they physically possess pets and is carrying it with them. On the other hand, the sentence 「かれらはペットがあります。」(Karera wa petto ga arimasu.) emphasizes the existence of the pets and uses the verb 「ある」(aru) which means “to exist” or “to be present.” This sentence is commonly used when you want to convey the fact that there are pets available to them, whether or not they are physically carrying pets. (ref: chat.openai.com)

More Examples:

English Examples:

1. I have got a new car.
2. I have a new car.
3. She has got a headache.
4. She has a headache.
5. We have got a big house.
6. We have a big house.
7. They have got a lot of work to do.
8. They have a lot of work to do.
9. He has got a cold.
10. He has a cold.

Japanese Examples:

1. 私は新しい車を持っています。(Watashi wa atarashii kuruma wo motte imasu.)
2. 私は新しい車があります。(Watashi wa atarashii kuruma ga arimasu.)
3. 彼女は頭痛があります。(Kanojo wa zutsuu ga arimasu.)
4. 彼女は頭痛を持っています。(Kanojo wa zutsuu wo motte imasu.)
5. 私たちは大きな家を持っています。(Watashitachi wa ookina ie wo motte imasu.)
6. 私たちは大きな家があります。(Watashitachi wa ookina ie ga arimasu.)
7. 彼らはたくさんの仕事があります。(Karera wa takusan no shigoto ga arimasu.)
8. 彼らはたくさんの仕事を持っています。(Karera wa takusan no shigoto wo motte imasu.)
9. 彼は風邪をひいています。(Kare wa kaze wo hiite imasu.)
10. 彼は風邪を持っています。(Kare wa kaze wo motte imasu.)

(ref: chat.openai.com)