用作定语
▲～+n.
There's been a noticeable improvement in his handwriting.他的书法有了明显的进步。
There's a noticeable difference in our totals.我们的总数有明显的不同。
用作表语
▲S+be+～
The damage to my car is hardly noticeable.我的汽车被损坏的地方不大明显。
▲S+be+～+prep.-phrase
The result of the experiment was not noticeable for a long period.那项试验的结果好长一段时间没有引起注意。