adj.看不見(jiàn)的；無(wú)形的

n.隱形人(或物)

Some stars are invisible to the naked eye. 有些星體肉眼是看不見(jiàn)的。

Germs are invisible to the naked eye. 細(xì)菌用肉眼看不見(jiàn)。

The mends were almost invisible. 修補(bǔ)過(guò)的地方幾乎看不出來(lái)。

Aunt Harriet presided over an invisible army of servants that continuously scrubbed, cleaned, and published. 姑母哈麗特支配著一大群看不見(jiàn)的仆人，他們不停地刷洗、打掃和擦拭。

Her fantasy is to become invisible. 她的幻想是變成隱形人。

Sometimes feel as if I'm invisible, as if no one can see me at all. 有時(shí)覺(jué)得自己像個(gè)隱形人。