n. an expert who observes and comments on something
词态变化
复数形式:observers
常见例句
1
An auscultatory process, which consists in noting the tone of the observer's own voice, while he speaks, holding his head close to the patient's chest.
2
on the farther side from the observer r
3
fit for all observers s free from sepsis or infection s morally pure s (of a manuscript) having few alterations or corrections s (of a surface) not written or printed on s exhibiting or calling for sportsmanship or fair play s without difficulties or problems s thorough and without qualification s not carrying concealed weapons s free from clumsiness
4
considered magical by naive observers
5
(astronomy) a heavenly body's highest celestial point above an observer's horizon
