1.One could carry this television by oneself.

这台电视可以自己搬。

2.And now for " by oneself." " By" is a preposition.

现在讲by oneself。by是介词。

3.One doesn't do it by oneself.

人不能自做这件事。

4.In such a case, studying by oneself is crucial to improve your learning efficiency.

在这种情况下, 自学对于提高你的学习效率至关重要。

5.It is lonely living by oneself.

人很。机翻

6.America is a nation known for the idea of making things by oneself.

5. 美国是以自己制造东西的理念而闻名的国家。机翻

7.In a noisy and crowded world, they argue, people should make time to be by oneself, away from attention-grabbing stimuli.

他们认为，在嘈杂拥挤的世界里，人们应该抽出时间处，远离吸引注意力的刺激。

8." Alone" , instead of saying " alone" , you could say: " by oneself" , " on one's own" , " by themselves" .

“自”，替代这词，你可以说：“人”，“自己”，“他们自己”。

9.To discard the hard-won information on how to live accumulated by our ancestors, or to expect to discover a viable set of goals all by oneself, is misguided hubris.

抛弃祖先积累的关于如何生活的来之不易的知识，或者期望自发现套可行的目标，是错误的傲慢。机翻