形容詞 discernible:

1. perceptible by the senses or intellect
   同義詞：discernable
2. capable of being perceived clearly
3. capable of being seen or noticed
   同義詞：evident, observable

1. Changing or varying, especially often and without discernible pattern or reason.
   善變的易變的或反復(fù)無(wú)常的，尤指常無(wú)一定格式或道理的
2. A discernible mark or effect left by contact with something.
   痕跡與某物接觸后留下的可辨認(rèn)的標(biāo)記或效果

dis.cern.i.ble

adj.（形容詞）
Perceptible, as by the faculty of vision or the intellect.See Synonyms at perceptible
看得清的；辨別得出的：可辨知的，如通過(guò)眼力或智力參見 perceptible

【引伸】
discern.ibly
adv.（副詞）