對什么負責的英語短語charge

　　I sometimes find it a strain to be responsible for the mortgage.

　　我有時覺得背負這筆抵押貸款很有壓力。

　　Oxidized cholesterol may be responsible for furring up the arteries.

　　氧化膽固醇可能是造成動脈堵塞的元兇。

　　The man, who police believe is psychotic, is thought to be responsible for eight attacks.

　　這個警方認定為精神錯亂的男子被認為是8起襲擊事件的制造者。

　　A combination of factors may be responsible for the decrease in car sales.

　　多種因素的綜合作用可能導致了汽車銷量的下降。

　　You'll be responsible for receiving and talking with all visitors.

　　來訪者由你負責接談。