Look closely. What do all of these visually share? That is the component.
[[垂 droop]]
[[才]]
[[系]]
[[必 invariably]]
[[千 thousand]]
[[風 wind]]
[[少 few]]
[[舌 tongue]]
[[不 negative]]
[[係 person in charge]]
[[延 prolong]]
[[妥 gentle ]]
[[渓 mountain stream ]]
[[乳 milk]]
[[番 turn]]
[[沈 sink]]
[[醜 ugly]]
[[渚 strand]]