Xǐshǒupén xiàshuǐ dǔ le, děi qǐng rén lái tōng yíxià.
The bathroom sink is clogged — we need to call someone to clear it.
Tips
usage
洗手盆 is the bathroom hand-washing sink. The kitchen sink is 水槽 (shuǐcáo) or 洗菜盆 (xǐcàipén). 面盆 (miànpén, 'face basin') is a near-synonym for 洗手盆 in bathroom contexts.