大学英语： avail

vt./vi.有利，有助

to awail oneself of 意思是“利用”

The medicine didn’t avail against the disease.

这药对这种病没有产生疗效。

Talk will avail little without work.

光说不做没什么用处。

All our effort availed us little.

我们徒劳无功。

He quickly availed himself of the opportunity to win over supporters.

他迅速利用那次机会来争取支持者。

n.好处，用处。

We protested but to (或of) no avail.

我们提出了抗议，但没有效果。

④ suspect

vt.疑有；推测

suspect后面可接宾语从句，直接宾语，宾语后的行为用动词不定式或of介词短语表示。

He suspected a scheme against his life.

他怀疑有人要谋害他的性命。

The security department suspected him of giving information to a foreign company.

安全部门怀疑他向一家外国公司提供情报。

He was suspected to have got lung cancer.

他被怀疑得了肺癌。

Scientists suspect that the seismic instrument failed to monitor the shift of rock layers.

科学家们怀疑地震仪没能监视岩石层的移动。

There is reason to suspect that the death occurred between 6.30 and 7 o’clock last night.

n.嫌疑犯，可疑分子

Two suspects are now in prison in connection with the killing.

与杀人案有关的两个嫌疑犯已被关进监狱。

⑤ convince

vt.1、使确信，使信服；2、使认识错误（或罪行）

宾语后面可接动词不定式或of介词短语。

I can easily convince you of his ignorance.(=I can easily convince you that he is ignorant.)

我可以很容易地使你相信他的无知。

He was convinced to withdraw from running for the presidency.

他被说服退出总统竞选。

He was firmly convinced that risk accompanies decisions.

他坚信做决定总要冒风险。