Whenever 不 is before another fourth tone character, it becomes a second tone. 
Take for example, 不错 bùcuò, which means not bad. Since 错 is fourth tone, we read it as búcuò.

Learn Chinese with Sophie

 Second tone sandhi rule

Descrizione dell’episodio

In questo episodio di Italiano Chiaro, esploriamo alcune abitudini italiane che potrebbero sembrare strane ad altre culture. Dalla colazione al bar alle regole non scritte sul cappuccino, passando per il temuto “colpo d’aria” e la missione per prevenire la “congestione,” vi svelerò alcuni dettagli curiosi della vita quotidiana italiana.

Parleremo anche di famiglia e delle particolarità italiane: il ruolo centrale dei nonni, i giovani che vivono con i genitori fino a tarda età e, ovviamente, l’approccio rilassato alla puntualità.

Se state pianificando di trasferirvi in Italia o siete semplicemente curiosi di capire meglio la nostra cultura, questo episodio è per voi. Buon ascolto e a presto!

Italiano Chiaro - Cultura e Tradizioni 

Abitudini italiane curiose

Is there an art to expressing frustration with finesse? Smith, in his insightful discussion, unravels the intricacies of expressing oneself when vexed. With a touch of advanced yet accessible language, Smith emphasizes the significance of articulating frustration in a constructive manner, fostering better understanding and resolution.

LEARN BY LISTENING

Listen to THIS when You're feeling FRUSTRATED

In this episode I talk about how to improve your English speaking abilities. My italki teacher profile: https://italki.com/teacher/1947582 Thanks for listening! Visit my website for more of my full-length podcasts . https://www.streetwisenglish.com

Streetwise English

SWE 71 How to improve your speaking abilities

In this episode you will know about several stereotypes of latin american culture, I will tell you wich are real and no that real and discuss about it.

Spanish with Jas

EP 3. LATIN AMERICAN STEREOTYPES

Запрошую усіх послухати про квартиру, яка знаходиться у Львові. Уважно слухайте текст, а після тексту на вас чекають запитання до нього. Дайте відповідь на запитання та надішліть мені відповіді, а я їх перевірю та прокоментую. 
Уважно слухайте текст та візьміть листок та ручку. Вам буде легко зрозуміти текст. Намагайся перекладати нові слова, яких ти ще не знаєш. Пиши речення із новими словами , а якщо у тебе є питання - пиши мені.
Бажаю усім приємного прослуховування.

I invite everyone to listen to the apartment located in Lviv. Listen carefully to the text, and after the text you will be asked questions about it. Answer the questions and send me the answers and I will check and comment on them.
Listen carefully to the text and take a piece of paper and a pen. It will be easy for you to understand the text. Try to translate new words that you don't know yet. Write sentences with new words, and if you have any questions, write to me.
I wish everyone a pleasant listening experience.

Українська мова - це легко!

Квартира у Львові

30% de la population mondiale souffre de troubles anxieux. Comment les reconnaître et les apprivoiser ? La réponse dans ce nouvel épisode de Douce France. 

Douce France

La santé mentale en France

https://drive.google.com/file/d/16ruoOwe0pKFi5oB98shzaTmU89PrVCrg/view?usp=drivesdk

Teacher Joseph's Podcast

Idioms about Books and Reading (with transcript)

Transcript: https://drive.google.com/file/d/16EiqSbF8z2D1_Orgi4DoZUr-ur6TMXOx/view?usp=drivesdk