悉

xi̅ = xi + Ø1

in all cases / know

悉 = 心 + 釆 : Marie Curie (xi) noticed that her heart (心) is not working very well in front of the space station (Ø1). It is probably just the lack of any atmosphere and freezing temperature; but in all cases (悉) she wants to know (悉) what is going on and takes a few samples with her sampling tool (釆).

悉 character breakdown

悉
- 心
  - 丶
  - 乚
- 釆
  - 丿
  - 米
    - 丷
    - 木
      - 八
        
        丿
        
        ㇏
      - 十
        
        一
        
        丨

心

xi̅n = xi + (e)n1

heart / mind / intention / center / core / CL:顆|颗[ke1],個|个[ge4]

心 = 乚 + 丶 : Marie Curie (xi) uses a shovel (乚) to dig a hole in front of the encampment ((e)n1). She wants to bury her heart (心). To the side are three petal leaves (丶), with which she wants to cover it afterwards.

釆

biàn = bi + an4

old variant of 辨[bian4]

釆 = 丿 + 米 : Mnemonic symbol: a sampling tool. Brunhilde (bi) wants to distinguish a huge banana (丿) from a sack of rice (米) in the anthill's bathroom (an4), so she sticks her sampling tool (釆) into each of them and takes a small sample.