I must take my leave. 我一定要离开了
I must leave for school. 我一定要离开去学校了
Let's get on with the work. 继续工作吧.
Get on with your work. 继续你的工作吧.
I am going to arrive in black. 我将会穿着黑衣服到达
He is going to arrive in five minutes. 他将会在五分钟内到达.
You have to work. 你要工作.
I have to sleep. 我要睡觉.
I want to take a trip to Greece. 我想去希腊.
She wants to take a trip to the toilet. 她想上厕所.