Ductile cast iron
[機] 延性鑄鐵
?? 詞語組成解析
cast
[kɑ:st]
vt. 鑄造;投擲;投射;脫落，脫皮;
n. 鑄型;演員表;輕微的斜視;投，擲骰;
vi. 擲，投;計算，加;
iron
['ai?n]
n. 鐵器，鐵制品;熨斗，烙鐵;堅強;腳鐐;
adj. 鐵制的，含鐵的;堅強的，頑強的;殘酷的;堅忍不拔的;
vt. 熨燙;給…上腳鐐手銬;給…裝鐵具;用鐵鑄成;
vi. 熨衣;（衣服等）被燙平;
??? 情景例句
U2 are touring here in October, and I hear they put on quite a show.
U2 八月份將來這里做巡回演出，我聽說他們的表演很賣力。
It's a quarter past five.
現(xiàn)在是五點一刻。
a ticklish business which is achieved with the aid of two tame elephants roped to the captive on either side.
這是一件棘手的事，需要在它兩側拴上兩頭馴服的大象才能完成。