heretofore

在此之前，到现在为止

【例】This Agreement supersedes any undertaking or agreement that the parties may heretofore have had.

本协议取代双方在此之前达成的任何承诺或协议。

herewith

与此一道

①书信中多用以强调说明随函带有附件。

【例】We are sending you herewith the relevant Inspection Certificate No. 2022 and four photos.随函寄去有关的第2022号检验证及照片4张。

②多数人认为herewith与enclose，attach等词意义重复（如下例），宜删去herewith。

【例】Attached [Enclosed] herewith is a copy of the Letter of Guarantee.

随函附上保证书抄本一份。

hesitant

犹豫不决的

①多用作表语，后接介词about加动名词。句式：be hesitant about doing sth。

【例】They are hesitant about making a firm offer.

他们对于是否报出实盘犹豫不决。

②也有接用动词不定式和in加动名词的。句式：be hesitant to do sth = be hesitant in doing sth。

【例】Most buyers are hesitant to make [in making, about making] a bid.

大多数买主不愿贸然递价。