I believe that I can make it unaided.

我相信我能独立完成。

He can't live unaided since the car accident.

自从那次车祸后，他就不能独立生活了。

He was lost in the dark woods, unaided and scared.

他迷失在黑暗的树林里，感到无助和害怕。

He can now walk unaided.

他现在能独自行走了。

There have been at least thirteen previous attempts to reach the North Pole unaided.

以前至少有十三次尝试独立到达南极的努力。

He captured a lion unaided by anyone.

他只身捕获一头狮子。

She professed that she could do nothing unaided.

她自称无法独立做任何事。

Obviously, heavy hatch-doors did not swing open unaided.

显然，这沉重的通道口的门不可能自己打开。