| 词组 | at once |
| 释义 | 1.just the once只有一次 2.all at once (suddenly)突然；忽然 All at once there was someone knocking on the door.忽然有人敲门。 (simultaneously)同时；一起 3.at once (immediately)立即；马上 I knew at once that something was wrong.我立刻意识到情况不妙。 (simultaneously)同时 They all arrived at once.他们都是同时到达的。 Everybody is talking at once.所有人都同时在说话。 <文>(both)既…(又…) It was at once a question and a command.这既是询问, 也是命令。 4.for once (exceptionally)仅此一次；破例一次 She was able, for once, to relax.只有这一次, 她能够放松一下。 See once |
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