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t. 用心學(xué)本領(lǐng),總能學(xué)到手。 He will do the work providing you pay him. 如果你能付費(fèi),他可以做這工作。 We’ll let you use the room on condition that you keep it clean and tidy. 我們可以讓你使用這個(gè)房間,條件是你把它保持整潔。又如: Tell me in case you get into difficulty. 遇到困難請(qǐng)告訴我。如: If you will go with me, I’ll wait for you. 如果你愿意等我,我們就幫你做這事兒。 While (he was) doing so, he trembled a little. 他這樣做時(shí)稍稍顫抖了一下。 Often she would weep when (she was) alone. 她一個(gè)人時(shí),常??奁? If (you are) traveling north,you must change at Leeds. 如果你是向北行,你必須在里茲換車。 If necessary, ring me at home. 如果必要,可以打電話到我家找我。 He may be busy. If