a knack forDefinition: A talent / ability for something. Example: The professors in the linguistics department have a knack for languages.
In English, we always "have" a knack for something.
tandem sessionA tandem session is a meeting in which time is divided between two languages so that two learners have the opportunity to practice (eg. A German person learning Spanish and a Spanish person learning German).
Daughter: I'm thinking of going to Rome and then to Paris! Mom:The world is your oyster! Make the most of it.
account forDefinition: to be responsible forExample: He misbehaved and now he must account for his bad behavior.Read More
act upDefinition: to misbehaveExample: I'm sorry about my daughter, she acts up when she's tired.Definition: to not work / function properlyExample: My car is acting up and I need to take it to the shop.
turn upDefinition: to appear; to make its location known. Example: After searching for hours, my wallet finally turned up. When something turns up it means its location becomes known. If someone turns up to a party, it means they make an appearance; they come.