Welding grade shield gas
[化] 焊接级保护气体
🧩 词语组成解析
a. 焊的\\n[机] 熔接, 焊接, 锻接
shield
[ʃild]
n. 盾;护罩;盾形奖牌;保护人;
vt. 保护;掩护;庇护;给…加防护罩;
gas
[gæs]
n. 气体;[矿业] 瓦斯;汽油;毒气;
vt. 加油;毒（死）;
vi. 加油;放出气体;空谈;
int. 该死！（令人气愤的人应即被送毒气室处死）;
🗣️ 情景例句
What grade are you in?
你在几年级？
My daughter was very pleased to do shopping.
我的女儿非常喜欢去购物。
a moment later, he ran after me and thrust the pen into my hands.
一会儿，他突然从后追了上来，把笔塞到我手里。