...Although winter aggregations occur in the northern parts of the range, I have never seen such aggregations in the South... 
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...They consist of aggregations of peculiar swollen hyphæ, and are termed by Möller the “Kohl-rabi clumps...
Frédéric Houssay 「The Industries of Animals」
...The larger the mass the greater its attraction, and at last the nodal points become the nuclei of great aggregations from which planets are shaped...
Garrett Serviss 「Curiosities of the Sky」
...Besides these, there are many othergroups and aggregations of stars which adorn the celestial vault andenhance the beauty of the heavens...
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
ランダム例文：
shuck depopulated potted
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