英语词汇at the boundary怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

Longmenshan fault line, a tectonically active thrust fault line at the northwest boundary of the Sichuan basin—

龙门断层

•

龙门山断层

tertiary (geological era since the extinction of the dinosaurs at the Cretaceous-Tertiary boundary 65 million years ago)—

第三纪

a boundary—

堮

boundary n —

境 n

•

界 n

•

边 n

•

际 n

•

界线 n

•

边境 n

•

界限 n

•

定界 n

•

野 n

•

境界 n

•

疆界 n

•

止境 n

•

疆 n

•

边际 n

•

临界 n

•

畔 n

•

分野 n

•

边儿 n

•

穷尽 n

at prep —

于 prep

•

对 adv

•

乎 prep

the 1960s—

六十年代

the 1970s—

七十年代

Longmenshan fault line, a tectonically active thrust fault line at the northwest boundary of the Sichuan basin—

tertiary (geological era since the extinction of the dinosaurs at the Cretaceous-Tertiary boundary 65 million years ago)—

a boundary—

boundary n —

at prep —

the 1960s—

the 1970s—