纤
=
千
+
纟
:
Marie Curie (xi) finds that there are many fine (纤) silk worms (纟) in front of the anthill (a1). She wants to preserve the delicate (纤) worms and thus puts a kilo (千) on them to press and dry them.
尘
=
土
+
小
:
Charlie Chaplin (ch) enters the encampment ((e)n2) as a vicious dust storm (尘) is blowing. He breathes so much dirt (土) that he thinks the dirt got even into his heart (小).