n. 化验;试验;<古>尝试;试金;
vt. 化验;试验;考验;分析;
vi. 经检验证明内含成分;
🗣️ 情景例句
Good-bye.
再见。
We can't wait any longer.
我们不能再等了。
Professor Ronald Bracewell, a leading American radio astronomer,argued in Nature that such a superior civilization, on a visit to our own solar system,