safety

n. 安全；保险；安全设备；保险装置；安打

中文词源

safety 安全

safe,安全的，-ty,名词后缀。

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.

2. The built-in safety device compensates for a fall in water pressure.: 该内置式安全装置在水压下降时能提供保护。

3. The five survivors eventually reached safety, ragged, half-starved and exhausted.: 5位幸存者最终到达安全之地时已经衣衫褴褛、饥肠辘辘、精疲力尽。

4. Despite its demonstrable speed and safety, the boat failed to become popular.: 虽然其速度和安全性都可得到证明，但这种船还是不受欢迎。