Copper welding rod
[化] 銅焊條
?? 詞語組成解析
copper
['kɑp?]
n. 銅;銅幣;紫銅色;警察;
adj. 銅制的;
vt. 鍍銅;
a. 焊的\\n[機] 熔接, 焊接, 鍛接
rod
[rɑd]
n. 桿，拉桿;懲罰，體罰;（責打人用的）棍棒;手槍;
??? 情景例句
It's not difficult.
這不難。
The crowd gasped with astonishment.
大家驚訝的屏住呼吸。
later, we shall undergo a progressive loss of our vigour and resistance which, though imperceptible at first,
再遲一些，我們就要經歷生命力和抵抗力逐步衰退的過程。雖然這個過程起初難以覺察，