ถ้ากาแฟหนึ่งแก้วมีส่วนผสมของนำตาหนึ่งหยดอยู่ในนั้นมันจะขมปร่าเดิมไหม
Nếu một ly cà phê hoà với một giọt nước mắt thì có đắng hơn không?