How can Nations not being able to Compete Internationally lead to a Current Account Deficit?

-Nations that can’t Compete well will see Exports tank -Maybe because of Lower Cost of Productions in other Nations, itself can come from Structual Probems [Immobility of Labour] Better Technology making Production more Efficient -Stronger Currencies will make Goods more Expensive for Foreign Buyers, while making Imports Cheaper -Inflation increasing means Exports will fall as it bcomes Expensie, while Imports will Rise as its becomes more Viable than Domestic Products