有关倒装句的疑问

Only once these requirements are fully satisfied is the oil allowed tobe sold as certified sustainable palm oil (CSPO).
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1 个回答

你的句子用倒装,与句首的 only 有关。你应该知道,“only+状语”置于句首时,其后的句子是要用部分倒装的。比如:Only in this way can we learn English. 只有这样才能学会英语。Only by shouting was he able to make himself heard. 他只有叫喊才能让别人听到他。Only then did I understand what she meant. 只有到那时我才明白她的意思。Only when he is selfless can a man be fearless. 只有无私,才能无畏。Only if a teacher has given permission is a student allowed to enterthis room. 只有得到教师的允许,学生才可以进这间屋。在网友的句子中,only 后面接的状语是 once these requirements arefully satisfied(这是由once引导的时间状语从句),所以后面的 is 要提前变成部分倒装。
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