Back of weld
[化] 焊缝背面
🧩 词语组成解析
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
weld
[wɛld]
vt.& vi. 焊接;使紧密结合;
n. 焊接点;黄色植物染料;
🗣️ 情景例句
Sunday. Why?
星期天。为什么问这个？
Do you have any toys?
你有玩具吗？
The woman kept as near as she could to the children and even tried to get into the case herself, but it was too small.
这位妇女尽可能地靠近孩子，甚至自己也想钻进箱子里去，只是箱子太小了。