只，仅，仅仅(without anyone or anything else;alone)：O～three survived.只有三人幸存。O～he would be so cruel! 只有他才会如此的残酷无情! It～costs ￡5. 这只要五英镑。We can～take three of you in our car.我们的汽车只能带你们中的三个人。There is room for one person～.只有一个人的空。You are～young once.青春只一度。

not only...but also 不但……而且……：He condemns not～the aristocrats，but the capitalists also.他不但谴责贵族，而且还谴责资本家。

only just 1)刚刚：They've～just got up.他们刚刚起床。2)差一点没，几乎不：He～just missed the train.他差一点没赶上火车。

only to do sth反而，结果却，不料：Yesterday I went to see him，～to learn that he had gone abroad two days before.昨天我去看他，不料得知他两天前已出国了。

only too 很，非常：We're～too pleased that you've arrived safely.你已安全到达，我们非常高兴。