give off 托福

When nitric acid is poured on copper, a brown vapor gives off.

将硝酸倒铜, 会散发出一种棕色蒸气。

When the electric stove is turned on, the burners give off a red glow.

电炉一点燃，炉心就发出红光。

When wine is fermented, it gives off gas.

酒发酵发出气泡。

The flowers give off a heady scent at night.

这些花晚散发出醉人芳香。

The skunk gives off an unpleasant smell when attacked.

受到攻击臭鼬会发出一种难闻气味。

It usually gives off abnormal communicating branches, which should be evaluated before embolismic operation of maxillary artery.

眼动脉起源存变异及异常交通支，颌动脉栓塞前要评估是否存这些变异。

Welds makes up in the process the substrate not to give off heat, not to distort, the unstressing, does not have the hard spot and the annealing situation.

世界第一台铸造缺陷修补机研制成功，给铸造缺陷修复带来了一次彻底革命！焊补过程中基体不发、不变形、无应力、无硬点及退火情况。