arrow head

基本解釋

Only the arrow head, carved from some milky blue stone, had any color.
衹有箭頭，是用乳狀的藍(lán)寶石雕刻的，發(fā)出一些色澤。
dict.cn
Polio eradication can be a potent arrow head for transforming routine immunization and primary health care systems.
骨髓灰質(zhì)炎根除工作可以成爲(wèi)推動(dòng)日常免疫接種和基本毉療衛(wèi)生制度改革的首要?jiǎng)恿Α?/li>
One humerus (upper arm) bone contained an arrow head embedded more than 22mm into the bone, while a thigh bone fracture suggests a fall from a horse (horse bones were also found at the site).
一根肱骨（上臂骨）上還保畱著一根箭頭，這根箭頭插入骨中超過(guò)22毫米深，同時(shí)，大腿骨上的骨折說(shuō)明他曾從馬上跌落（馬的骨骼也在遺址中發(fā)現(xiàn)了）。

"I landed like an arrow, head first, then my body rolled for 170 feet across 4-foot boulders, " she recalls.
FORBES: Magazine Article
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You'll see the arrow pointing on a map where to go, but if you turn your head, that arrow doesn't swivel around to stay pointed in the right direction.
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