問題在于我們能不能在明晚以前完成這項工作。
(英語主從復合句——漢語簡單句)
5)While we were operating the machine tools, we were very careful.
我們在操縱機床時非常小心。
(英語主從復合句——漢語簡單句)
6)There are some metals which possess the power to conduct electricity and ability to be magnetized.
某些金屬具有導電的能力和被磁化的能力。
(英語主從復合句——漢語簡單句)