fault [fɔlt] 词频1 词根: fals

n. 缺点，缺陷;过错，责任;[电]故障;（猎狗的）失去嗅迹; vt. 挑剔，找…的缺点;批评;做错，在…中出错;[地质学]产生断层; vi. 找错误，挑剔;[地质学]变动从而产生断层;

💡 fault=fal错 → 过失，缺点

"A wilful fault has no excuse and deserves no pardon."

近义：rift, shift, break, fracture, faulting, recuse 反义：indulgence, pardon, purge, remit, resolve, spare

must [mʌst] 词频1

aux. 必须;必然要;（做出逻辑推断）;（表示坚持）; n. 必须做的事，必不可少的事物;葡萄汁;霉臭;麝香; vt.& vi. （表示必要或很重要）必须;（提出建议）应该;得;（表示很可能或符合逻辑）一定; adj. 不可或缺的;狂暴的;

"You must be able to speak French for this job."

近义：ought, should, necessaries, necessity, precondition, prerequisite

upon [ə'pɑn] 词频1

prep. 在…上面;当…时候;

"It was a title bestowed upon him by the king."

近义：above, atop, on, onto, over, o'er

laid [[leid]] 词频1

lay的过去式和过去分词

packsaddle

n. 驮鞍

近义：saddle, clubs