试探的英文：
to sound out
to probe
to feel out
to try out

参考例句：

The club has made an approach to a local business firm for sponsorship.
俱乐部已试探向本地一家公司寻求资助。

You needn't think you can try anything on with the new director,he's strict disciplinarian.
你别想试探新主任，他是位纪律严明的人。

He sent out a few cautious feelers and received some contradictory answers.
他作过几次谨慎的试探，得到的答复前后不一。

I am putting out feeler to see if he'd like to come and work for us.
我正在试探他，看他是否愿意来为我们工作。

After five minutes like this, Li Yu-ting could hold out no longer, and decided to put out a feeler
大约五分钟过去了，李玉亭再也捱不下，决定先说几句试探的话

Trying to find out the abstract and concrete
试探虚实

said Franz inquiringly
弗兰兹试探地说道。

I will have to feel them out of course and see whether they are likely to accept our terms.
我当然得先试探试探，看他们接受我们条件的可能性大不大。

The old man had told him to keep trying but merely as a sideline, not to press it.
老头子叫他继续试探，但不要专门去催促。

I went to feel the old man's pulse on the subject.
我去试探一下老人对这个问题的看法。

sound是什么意思：
n. 声音；印象，感觉；录音；音乐风格；海峡，海湾
v. 发出声音；探测，试探；听起来；发出警报
adj. 健全的，完好的；明智的；酣畅的
adv. 酣（睡）

Sounding by sound is a sound method of sounding sounds.
声音测量是一种用声学探测声音的方法。

sounding survey
海底测深；水深测量

The advance was sounded.
进军号吹响了。

out是什么意思：
adv. 出外；在外；离岸；出现；问世；大声地；完全；用完；不流行
adj. 外侧的；偏僻的
prep. 通过…而出；沿着…而去
n. 借口，托辞
pref. 外，超过，出，向外

be out for the count
拳击者被击倒后经裁判数到十秒还站不起来|被判失败|打输|被打败

Out of the Blue
从天上掉下来

Out of power, he is out of favour.
当他失去权力之后，他也就不再受人欢迎。

probe是什么意思：
n. 探针；探测器；深入的调查
v. 探查；探究

The probe unit is hermetically sealed.
探头装置是密封的。

The sensitivity of the probe inputs is field adjustable.
探头输入的灵敏度可以在现场调整。

A method for the preparation of the microdialysis probe is reported.
介绍了一种自制微透析探针的制备方法