土耳其里拉兑美元跌破40关口。

Core Insights - The Turkish lira has fallen below the 40 threshold against the US dollar [1] Group 1 - The depreciation of the Turkish lira indicates significant currency instability [1] - This decline may impact foreign investment and economic confidence in Turkey [1] - The crossing of the 40 mark is a psychological barrier that could lead to further market reactions [1]