Most of our quarterly revenue derives from long-term contracts with overseas clients.

我們每季大部分的營收來自與海外客戶簽訂的長期合約。

The delay in the shipment derived from a customs inspection at the port.

這批貨延誤是因為在港口接受海關檢查所致。

Many customer complaints derive from unclear instructions in the product manual.

許多客訴源自產品手冊中不清楚的說明。