Please raise your hand if you have questions about the new expense policy.

如果對新的報帳規定有疑問，請舉手。

The receptionist shook each candidate's hand warmly before the interview began.

面試開始前，櫃檯人員熱情地和每位應徵者握手。

Passengers should keep one hand on their luggage while waiting at the crowded gate.

在擁擠的登機門候機時，旅客應該用一隻手顧好行李。