lewis
lewis — 名詞
- lewissingular
- lewisesplural
1. A common family name from England and Wales carried by many well-known people in
路易斯
英語姓氏，多位歷史名人皆姓此姓
A common family name from England and Wales carried by many well-known people in history, including the British writer C. S. Lewis (1898–1963), who is best known for the Narnia books; the American explorer Meriwether Lewis (1774–1809), who crossed North America with William Clark; the American labour leader John L. Lewis (1880–1969); the American novelist Sinclair Lewis (1885–1951), the first American to win the Nobel Prize in Literature; the British artist and writer Wyndham Lewis (1882–1957); the British author Matthew Gregory Lewis (1775–1818); and the American biologist Edward B. Lewis (1918–2004).
Felipe wrote his book report on C. S. Lewis and the world of Narnia.
Felipe 的讀書報告寫的是 C. S. Lewis 與納尼亞的世界。
proper noun: surname of a famous writer
Many American school children learn about the journey of Lewis and Clark across the Rocky Mountains.
許多美國學童都會學到 Lewis 和 Clark 翻越洛磯山脈的探險旅程。
fixed pair: Lewis and Clark (the famous expedition)
Shanti's new English teacher is called Ms. Lewis, and she comes from a small town in Wales.
Shanti 的新英文老師叫 Lewis 小姐，來自威爾斯的一個小鎮。
Sinclair Lewis was the first American writer to win the Nobel Prize in Literature.
Sinclair Lewis 是第一位獲得諾貝爾文學獎的美國作家。
Eli's grandfather, an old miner from Pennsylvania, still talks about the union leader John L. Lewis with great respect.
Eli 那位來自賓州、做過礦工的爺爺，至今仍以極大的敬意提起工會領袖 John L. Lewis。
用法筆記
Frequently appears with a first name or initials (C. S. Lewis, Meriwether Lewis, John L. Lewis) and in the fixed pair 'Lewis and Clark' that names the famous westward expedition across North America. Common as both a real surname and a typical surname for fictional characters in English-language books and films.
常見錯誤
2. Used before 'acid' or 'base' to name a kind of chemical helper, first described
路易斯酸
化學中接受電子對的酸；對應路易斯鹼
Used before 'acid' or 'base' to name a kind of chemical helper, first described by the American chemist Gilbert N. Lewis in 1923. A Lewis acid pulls in a pair of electrons offered by another chemical (the Lewis base), so the two stick together to form a new bond. The idea covers many reactions that the older school definition of acids and bases cannot explain.
Our chemistry teacher drew arrows to show how a Lewis acid grabs a lone pair.
化學老師畫了箭頭，示範路易斯酸如何抓取一對孤對電子。
fixed pair: Lewis acid / Lewis base
Iris ran a small experiment using boron trifluoride, a classic Lewis acid, in the school chemistry lab.
Iris 在學校化學實驗室裡用三氟化硼這個典型的路易斯酸做了一個小實驗。
collocation: classic Lewis acid + example compound
In the second-year chemistry course, students learn the Lewis idea of acids one week after the school definition.
在二年級的化學課中，學生會在學過學校定義的一週後接觸路易斯對酸鹼的看法。
Aluminium and iron ions often act as a Lewis acid in water and other solvents.
鋁和鐵的金屬離子在水和其他溶劑中常會扮演路易斯酸的角色。
- electron-pair acceptor
the plain technical description of what a Lewis acid does; used in chemistry textbooks alongside the named term
- Lewis base
the partner term — gives the pair of electrons that a Lewis acid accepts
文法句型
Lewis acid
Lewis base
用法筆記
Always written with a capital L because it is named after the chemist Gilbert N. Lewis. Almost always followed by 'acid' or 'base'; the bare noun 'a Lewis' is not used in this sense. Distinguish from sense 1 — sense 2 only appears in chemistry contexts.