Alkaline earth metals
[机] 碱土金属
🧩 词语组成解析
alkaline
['ælkəlain]
adj. 碱性的，碱的;含碱的;
n. 碱度，碱性;
earth
[ɝθ]
n. 地球;陆地;泥土;兽穴;
vt. 把（电线）接地;盖（土）;追赶入洞穴;
vi. 躲进地洞;
五金
🗣️ 情景例句
The smog in L.A. is caused by air pollution and water vapor.
洛杉矶的烟雾是由空气污染和水蒸气造成的。
They jumped at the unexpected noise.
他们因突如其来的声音吓得跳了起来。
Light the fire not so near the entrance that the wind will blow the fire out, and not so far in that the smoke will fill the cave, said my brother.
“不要太靠近洞口点火，风会把火吹灭的；也不要太靠里面，那样烟会充满山洞的，”我弟弟说，