Lead tetraphosphate
[化] 四磷酸鉛
?? 詞語組成解析
lead
[lid]
vt. 領導;引導;指揮;
vi. 領導;導致;用水砣測深;
n. 鉛;領導;榜樣;槍彈;
adj. 領頭的;最重要的;領先的;
四磷酸鹽
??? 情景例句
And if you ever need Dad or me to help you ...
如果你們的確需要我和爸爸的幫助的話 ……
Then, all of a sudden, it became cloudy and began to rain.
可是突然天就變了，烏云密布并下起雨來。
It's up to you.
由你決定。