youdao

The lines were so finely etched as to be invisible from a distance.

这些线条蚀刻得如此精细，离远点都看不出来。

《柯林斯英汉双解大词典》

The password should be invisible.

密码应该是不可见的。

youdao

Sam Sedaei says that identity is like an invisible man, and for him as an Iranian American, a coherent identity can be even more difficult to see.

VOA: standard.2010.06.15

But, and this will be the crucial point, notice Socrates should have continued the soul is invisible in that sense.

但是，这一点很重要，注意苏格拉底应该在这个意思上,继续阐述灵魂是无形的。

耶鲁公开课 - 死亡课程节选

You don't get the more modest conclusion invisible things can't be destroyed or it's a whole lot harder to destroy them.

不是得出个更谦虚的结论,无形的东西不会毁灭或者,要毁灭它是不容易的。

耶鲁公开课 - 死亡课程节选

The alterations may be invisible for a while, but people sense the underlying change.

ECONOMIST: Britain

You not only tried to keep a low profile, you tried to be invisible to the media.

FORBES: Dow Jones Interactive

Allowing yourself to be invisible in the workplace may be comfortable, but it is a surefire way to underearn.

FORBES: Is it time to earn more?