As usual, the weekly sales meeting will start at nine o'clock in Conference Room B.

和往常一樣，每週業務會議將於九點在B會議室開始。

Shipping delays are usual during the holiday season, so please order your supplies early.

假期期間出貨延誤很常見，所以請提早訂購用品。

The flight left an hour later than usual because of heavy fog at the airport.

由於機場大霧，班機比平常晚了一個小時起飛。