mōng gwó baak hēung luhk chàh
芒果 is the loanword for mango (which is taken from the Portuguese manga which is from the Malay mangga which in turn came from the Tamil mankay). 百香 is short for passion fruit (百香果, hundred fragrant fruit). And {綠茶 is green tea, so 芒果百香綠茶 is mango hundred fragrant fruit green tea.
Green tea mixed with mango and passion fruit.