The courier carried three heavy boxes under his arm into the shipping office.

快遞員把三個沉重的箱子夾在手臂下，搬進了貨運辦公室。

After a long flight, she stretched her arms before heading to the hotel lobby.

長途飛行後，她先伸展一下手臂，再前往飯店大廳。

Please keep your arms inside the shuttle bus while we drive to the terminal.

我們開往航廈途中，請將手臂保持在接駁車內。