Stability of the measuring unit
[經] 衡量單位的穩定性
?? 詞語組成解析
of
[?v]
prep. 關于;屬于…的;由…制成;
aux. 助動詞 [非標準用語、方言] =have [主用于虛擬語氣];
the
[e?]
art. 指已提到的人（物）;指說話人與聽者已知的人（物）;用于獨一無二的事物前;與形容詞最高級和序數詞連用;
n. 測量\\n[計] 測量的
unit
['ju:nit]
n. 單位，單元;裝置;個體;[數]單位數;
??? 情景例句
Frank, you've never played charades?
Frank，你從來沒玩過啞謎？
An ambulance will be here in no time.
救護車馬上就到。
so she sat down and accepted a cup of very strong tea, while he telephoned the police.
于是坐了下來，喝了一杯濃茶。與此同時，看門的人給警察掛了電話。