Sgr
abbr. 無(wú)鈾伽馬；鈉石墨反應(yīng)堆（Sodium Graphite Reactor）
??? 情景例句
If your pet turtle gets sick, take him to the vet.
如果你的寵物龜病了，帶它去看獸醫(yī)。
With time and patience the leaf of the mulberry becomes satin.
只要功夫深，鐵杵磨成針。
But they suddenly became the parents of quintuplets,
但是他們出人意料生了個(gè)五胞胎，