unsustained meaning in English

未持续的

This goal will not yield to halfhearted unsustained efforts or to lip service
半心半意，时作时辍，或者只说不做，是达不到目的的。
She declares , “ the more solitary , the more friendless , the more unsustained i am , the more i will respect myself
她表明? “越是孤单寂寞?越是孑然无友?越是困苦艰难?我越是要尊重自己。 ”
Still indomitable was the reply - i care for myself . the more solitary , the more friendless , the more unsustained i am , the more i will respect myself
但是那回答依然是不可改变的一一“我关心我自己，愈是孤单，愈是没有朋友，愈是无助，那我就愈是自尊。