PHRASE If you do something to no avail or to little avail, what you do fails to achieve what you want. 徒劳 [书面]
His efforts were to no avail.
他的努力是徒劳的。
V-T If you avail yourself of an offer or an opportunity, you accept the offer or make use of the opportunity. 利用 [正式]
Guests should feel at liberty to avail themselves of your facilities.
客人们应可以随意使用你们的设施。
However, one must be careful while availing a 2nd mortgage loan.
然而，我们必须小心，同时，利用获得第二按揭贷款。
By availing this opportunity, I would like to briefly introduce the situation in Jinhua.
借此机会，我简要介绍一下金华的情况。
Due to its low cost, availing and producing easily, and complete degradation, starch material will be ap - plied in wide fields.
淀粉材料由于成本低、易于得到、加工相对容易、可完全降解，因此前景比较广阔。
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