按铃

rú guǒ zhè tái jī qì yùn zhuǎn bù líng qǐng àn zhè ge àn líng bìng děng hòu

如果这台机器运转不灵，请按这个按铃并等候。

Should this machine fail, ring the bell and wait.

rú guǒ nǐ xiǎng ràng gōng gòng qì chē tíng xià jiù qǐng àn zhè ge àn líng

如果你想让公共汽车停下就请按这个按铃。

Ring the bell if you want the bus to stop.

rú guǒ nǐ xū yào bāng máng qǐng àn líng

如果你需要帮忙，请按铃。

Please ring the bell if you need help.

qǐng àn líng yǐ yǐn qǐ tā men de zhù yì

请按铃以引起他们的注意。

Ring your bell to get their attention.