tense up
紧张
例句与用法：
Most English verbs are inflected with `-ed' in the past tense.
英语大多数动词过去式词尾均变化为-ed的形式。
Try to act naturally, even if you're tense.
即使紧张也不要做作。
The verb is in the present tense.
这个动词使用的是现在时态。
It is difficult to be natural when one is tense.
人在紧张的时候很难泰然自若。
词形变化：
副词: tensely | 形容词比较级: tenser | 形容词最高级: tensest | 名词: tenseness | 动词过去式: tensed | 动词过去分词: tensed | 动词现在分词: tensing | 动词第三人称单数: tenses |
详细释义：
使紧张
She's never tensed up before an examination.
考试之前她从不紧张。