His efforts were to no avail.
他徒劳无功。
I apologized repeatedly, but to little avail.
我一再道歉,但丝毫没有奏效。
Guests should feel at liberty to avail themselves of your facilities. [V pron-refl + of]
宾客们应该可以随意使用你们的各种设施。
👨🏻🏫 Mr. Ng 柯林斯詞典 📚 – collins.mister5️⃣.net切換為繁體中文