cān / guān / Yì / Pǔ / shí / qǐng / bǎo / chí / ān / jìng / bú / yào / luàn / rēng / lā / jī

参观艺圃时，请保持安静，不要乱扔垃圾。

When visiting Yipu, please keep quiet and do not litter.