spend time on sth.結構用法：
(1)We also spend time on the Japanese business.
我們還探討了日本業務。
(2)So he spend time on solving problems, rather than used to create new problems.
所以，他把時間花在解決問題上，而不是用來制造新的問題。
(3)They spend time on career planning.
他們會花時間進行職業規劃。
(4)We think he needs to spend time on his homework.
我們認為他需要在作業上多花些工夫（時間）。
(5)Make it a point to rest and spend time on things that matter in life, not just work.
別只忙于工作，也要會休息，花時間做點真正有意義的事情。