A{{U}} (51) {{/U}}of foreign words still look like foreign words; there are often expressions which
{{U}}(52) {{/U}}originally used by people who wanted to sound particularly well-educated. It was the desire to be scholarly that brought{{U}} (53) {{/U}}a wave of Latin terms which appeared in the 16th century{{U}} (54) {{/U}}the Humanist movement brought new impetus to learning throughout Europe.{{U}} (55) {{/U}}such as, e. g. (from the Latin meaning a voluntary example); PS (meaning" added after the latter has been written" ); a.m. and{{U}} (56) {{/U}}( meaning "before noon" and" after noon" ) came into the language at this time. Nowadays they are{{U}} (57) {{/U}}common that most people don't even know{{U}} (58) {{/U}}the letters actually stand for and there's certainly nothing learned about using them today !
In addition to the words brought to English{{U}} (59) {{/U}}foreigners, there are plenty of words which the British have collected from the countries they have settled in all{{U}} (60) {{/U}}the world. There are even a few Chinese words, which I’m sure a Chinese speaker would recognize from the way we pronounce them:" typhoon" is a great wind; "to kow-tow" is to bow down low; a "sampan" is a small wooden boat. Over 5,000 of the words in common use in English today are words of foreign{{U}} (61) {{/U}}. Some of them are clearly recognizable{{U}} (62) {{/U}}foreign like "au pair" or "rendezvous";{{U}} (63) {{/U}}now look so English that only a language historian knows{{U}} (64) {{/U}}they came from.
So English is in a state of permanent development. Both in Britain and abroad it is gaining{{U}} (65) {{/U}}words and expressions, and dropping and changing old{{U}} (66) {{/U}}. Words changes their meaning, and they go in and out of fashion{{U}} (67) {{/U}}hairstyles. Nobody knows all the four million words that are said to exist; a well-educated person probably{{U}} (68) {{/U}}under 20,000. So don't be surprised if you never encounter some of the expressions that still appear in school textbook; and next time you hear somebody using a strange word you haven't heard{{U}} (69) {{/U}}, you can comfort yourself that there may well be a native speaker somewhere who doesn't know it{{U}} (70) {{/U}}.