seven

num.

七；七个；第七；

n.

七；七个；

复数：sevens

seven years七年

at sixes and sevens乱七八糟

seven seas世界七大洋

group of seven七国集团；七大工业国

seven deadly sins七宗罪，七大罪

seven sages n. （对统治和立法有贡献的）古代希腊七贤人

seven sisters七姊妹（世界七大石油公司）；北斗星团

1. There are seven continents in the world.
   世界上有七大洲。
2. Four multiplied by seven is twenty-eight.
   7乘4等于28。
3. I have seven roommates in my university.
   上大学时，我有七个室友。

Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Galactic Foreground Emission
The magic number Seven : somes limits in our capacity for processing information
Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Power Spectra and WMAP-Derived Parameters
Self-rated health and mortality: a review of twenty-seven community studies
SEVEN-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP *) OBSERVATIONS: ARE THERE COSMIC MICROWAVE BACKGROUND ANOMALIES?
HIV-1 Entry Cofactor: Functional cDNA Cloing of a Seven-Transmembrane, G protein-Coupled Receptor
Daytime sleepiness and vascular morbidity at seven-year follow-up in obstructive sleep apnea patients.
Islet Transplantation in Seven Patients with Type 1 Diabetes Mellitus Using a Glucocorticoid-Free Immunosuppressive Regimen — NEJM
Comparison of Rasch and summated rating scales constructed from SF-36 physical functioning items in seven countries: results from th...
Comparison of Rasch and summated rating scales constructed from SF-36 physical functioning items in seven countries: results from th...