天杀的

• 大(adult; large (pictographic))RADICAL
• 一(one; top)ASSOCIATIVE

The sky is the vast, boundless expanse that lies above human beings.

• 乂(cut; eliminate)PHONETIC
• 木(wood; tree)ASSOCIATIVE

Using a weapon to chop into wood creates the image of killing and destruction.

• 白(white; bright)RADICAL
• 勺(spoon)PHONETIC

A spoon catching sunlight shines brightly and clearly — the character means "of" or shows clarity and definiteness.