an isotope of hydrogen formed of one proton and one neutron in each atom--21h
Resimler
История
- an isotope of hydrogen formed of one pro..
- third-person singular simple present ind..
- not educational; not related to or for t..
- to choose to look the other way (when fa..
- easily under a specified power or influe..
- a sodium salt of triphosphoric acid used..
- when numerous they attack man or beast, ..
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