国产精品久久999_黄视频免费在线_久久婷婷一区二区三区_国产毛片电影_手机国产乱子伦精品视频_麻豆蜜桃在线观看

safety

英 ['se?ft?] 美['sefti]
  • n. 安全;保險(xiǎn);安全設(shè)備;保險(xiǎn)裝置;安打

CET6CET4TEM4考研中高頻詞基本詞匯

中文詞源


safety 安全

safe,安全的,-ty,名詞后綴。

英文詞源


safety (n.)
early 14c., from Old French sauvete "safety, safeguard; salvation; security, surety," earlier salvetet (11c., Modern French sauveté), from Medieval Latin salvitatem (nominative salvitas) "safety," from Latin salvus (see safe (adj.)). Meaning "trigger-lock on a gun" is attested from 1881.

As a North American football position, first recorded 1931. As a type of score against one's own team, 1881. Safety-valve, which diminishes the risk of explosion, is from 1797; figurative sense recorded from 1818. Safety-net in literal sense (in machinery) by 1916, later of aerial circus performances (1920s); figurative use by 1950. Safety-first as an accident-prevention slogan first recorded 1873.

雙語(yǔ)例句


1. They offer tips on topics such as home safety.
他們就家居安全等問(wèn)題提供建議。

來(lái)自柯林斯例句

2. The built-in safety device compensates for a fall in water pressure.
該內(nèi)置式安全裝置在水壓下降時(shí)能提供保護(hù)。

來(lái)自柯林斯例句

3. The five survivors eventually reached safety, ragged, half-starved and exhausted.
5位幸存者最終到達(dá)安全之地時(shí)已經(jīng)衣衫襤褸、饑腸轆轆、精疲力盡。

來(lái)自柯林斯例句

4. Despite its demonstrable speed and safety, the boat failed to become popular.
雖然其速度和安全性都可得到證明,但這種船還是不受歡迎。

來(lái)自柯林斯例句

5. Contact the health and safety rep at your union.
與你所在工會(huì)的健康安全代表聯(lián)系。

來(lái)自柯林斯例句

主站蜘蛛池模板: 色综合久久一区二区三区 | 国产一区二区三区四区五区入口 | 黄色成人免费视频 | 视频一区二区三区在线观看 | av看片网站 | 成年免费视频 | 久久成人综合 | 日本精品视频 | 国产欧美综合一区二区三区 | 亚洲aa在线| 日韩在线播放视频 | 日韩免费影院 | 青青草这里只有精品 | 91日韩在线| 国产 日韩 欧美 一区 | 五月色综合 | 精品国产欧美一区二区 | 亚洲欧美综合精品久久成人 | 国产免费视频 | 美女在线观看www | 久久久久免费视频 | 精品国产高清一区二区三区 | 国产精品免费一区二区 | 日韩精品免费一区二区三区 | 日韩精品无码一区二区三区 | 狠狠操夜夜操 | 欧美一区二区精品 | 成人性生交大片免费网站 | 麻豆精品国产 | 久久99视频精品 | 久久久久久久久久久福利观看 | 在线观看毛片视频 | 精品美女久久 | 狠狠综合久久av一区二区老牛 | 中文一区在线 | 九九热精品视频在线观看 | 精品嫩草 | a天堂在线| 国产高清自拍 | 老司机av福利 | 国产精品一区二区av |