unaided造句

There have been at least thirteen previous attempts to reach the North Pole unaided.
之前至少已經(jīng)有過13次想獨立到達(dá)北極的嘗試。

Gross crystalline imperfections like twinning are apparent to the unaided eye.
粗的晶體不完整性,如孿生體可用肉眼看出.

That comet is invisible to the unaided eye.
那顆彗星只用肉眼是看不到的.

This fungus can just be detected by the unaided eye.
這種真菌只用肉眼就能檢查出.

• #unaided