马来西亚林吉特兑美元跌至4.242，为6月24日以来的最低水平。

Core Point - The Malaysian Ringgit has depreciated against the US Dollar, reaching a low of 4.242, the lowest level since June 24 [1] Group 1 - The depreciation of the Malaysian Ringgit indicates potential economic challenges for Malaysia [1] - The current exchange rate may impact import costs and inflation within the country [1] - Investors may need to monitor the currency fluctuations closely for potential investment opportunities or risks [1]