1、To catch Saturn, the farthest world that you can easily see with theunaided eye, you must be willing to get up an hour or more before sunrise.(如果要觀測土星，且想用肉眼就看到這個最遙遠的星球，你得心甘情愿的在日出一個小時更甚前起床。)
2、For starters, try scanning for the Andromeda galaxy with theunaided eye or binoculars.(對于初學者，可以嘗試用肉眼或者雙眼望遠鏡來尋找仙女座星系。)
3、This fungus can just be detected by theunaided eye.(這種真菌只用肉眼就能檢查出。) 【hao86.com好工具】
4、That comet is invisible to theunaided eye.(那顆彗星只用肉眼是看不到的。)
5、A new comet is brightening and is now expected to become visible to theunaided eye later this month.(一顆新彗星在變亮，并有望在本月下旬變成肉眼可見。)
6、But far behind these Earthly structures are many sky wonders that are invisible to theunaided eye, such as the bright waxing moon inside the arch.(但是在這些地質(zhì)結(jié)構(gòu)后面更遠處，是許多直接用肉眼無法看到的天空奇景，比如像拱形內(nèi)皎潔的月亮。)
7、The Shield is not big, but it provides some very nice views in dark skies with theunaided eye or binoculars.(盾牌座并不大，但如果天氣晴朗，你用眼睛，和雙筒式望遠鏡就很容易觀測到它。)
8、Inspection technology allows more than 100 million measurements a second to be made across the ribbon, locating flaws theunaided eye would be unable to see.(檢測技術(shù)可以在一秒鐘內(nèi)對玻璃帶進行超過1億次的測量，從而定位肉眼無法看到的瑕疵。)
9、Gross crystalline imperfections like twinning are apparent to theunaided eye.(粗的晶體不完整性，如孿生體可用肉眼看出。)
10、Barnard's Loop is too faint to be identified with theunaided eye.(巴納德環(huán)太昏暗以致肉眼無法辨認。)
11、Saturn is the farthest world that you can easily see with theunaided eye.(木星是我們能用肉眼看到的最遠的星星。)
12、Inclusions in I1 diamonds often are seen to theunaided eye.(I1等級的鉆石常含有肉眼可見的內(nèi)含物。)
13、Binoculars help out with the search, although both worlds are actually visible to theunaided eye in a clear sky.(雖然兩顆星體在明凈的天空都能夠用肉眼看到，但是用一副雙筒望遠鏡能更好觀測。)
14、The above spectacular picture of the Milky Way arch, however, goes where theunaided eye cannot.(然而以上這張弧狀銀河的壯觀的圖片讓我們達到了肉眼看不到的界限。)
15、If you can't see the Andromeda galaxy with theunaided eye, try binoculars.(如果你用肉眼看不到仙女座星系的話，試試望遠鏡。)
16、Most comets are extremely faint objects far below the limit of theunaided eye.(大多數(shù)彗星都是很黯淡的物體，遠非肉眼可見。)
17、Cook predicts the especially bright Comet McNaught C/2009 R1 will put on a worthy show for theunaided eye.(庫克預言，這顆極其明亮的麥克諾特彗星C/2009R1絕對會讓我們的肉眼“不枉此看”。)
18、Golden Saturn is the 6th planet outward from our sun and the farthest world that you easily see with theunaided eye.(土星是太陽系中游離之外的第六個行星，也是我們?nèi)庋鬯茌p易看到的最遠的地方。)
19、The Pleiades cluster is often called the Seven Sisters, though most people can only see six Pleiades stars with theunaided eye.(通常人們都稱昴宿星團為七姐妹，盡管人們憑肉眼最多只能看見六顆昴宿星團的星星。)
20、SI2 Slightly Included: Inclusions are visible under 10x magnification, and may be visible with theunaided eye. A good diamond value.(SI同樣分成1,2兩級，意指瑕疵在10倍放大率之下可見，并且在肉眼之下也可能被看到。也算是比較不錯的鉆石。)
21、Some stars are quite visible to theunaided eye.(有些星星肉眼都看得很清晰。)
22、When seen with theunaided eye from the earth, the moon looks like a smooth globe with dark and light patches of gray.(從地球上用裸眼看月球，月球就象個光滑的球體，上面帶著些深灰和淺灰色的斑塊。)
