test tube
plural of telescopy
(chemistry) a glass tube, rounded at one end and open at the other; used for small-scale laboratory tests
All elves, considered as a group.
(idiomatic) To make someone aware of something they did not know or fully understand before; to enlighten someone.
科学者は試薬を試験管に入れ、溶液が色を変えるのを見守った。
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