1570s, from Middle French sentinelle (16c.), from Italian sentinella "a sentinel." OED says "No convincing etymology of the It. word has been proposed," but perhaps (via a notion of "perceive, watch"), from sentire "to hear," from Latin sentire "feel, perceive by the senses" (see sense (n.)).
雙語例句
1. a tall round tower standing sentinel over the river
鎮守在河邊的一座高高的圓塔
來自《權威詞典》
2. We gave the watchword, and the sentinel let us pass.
我們說出口令, 哨兵就把我們放過去了.
來自《現代漢英綜合大詞典》
3. The lone sentinel walked toward his post.
憂愁的哨兵走向崗哨.
來自《現代英漢綜合大詞典》
4. SENTINEL? Model 880 source projectors are portable, lightweight and compact industrial radiographic exposure devices.