The client found our proposal too expensive and asked for a revised quote.

客戶覺得我們的提案太貴，要求我們重新報價。

Shipping the parts by air is expensive, so we usually choose ocean freight.

零件空運的費用很高，所以我們通常選擇海運。

Hotels near the convention center get expensive during the annual trade show.

每年商展期間，會展中心附近的飯店都會變得很貴。