Undertake an ascent of
攀登,攀爬…
🧩 词语组成解析
an
[æn]
art. 一（在元音字母前代替不定代词a）;一任一某一;一个;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
The fifth word is seven.
第五个字是七。
It's a shame this machine is so slow.
真遗憾，这台机器太慢了。
The bison skins were sent by rail to cities to be sold.
野牛皮用火车运到城里出售。