| 释义 |
be ALLOWbi:v [+ to infinitive]I am Cm you/we/they are HA:D, $A:r he/she/it is Iz, being 9bi:YIN, past simple I/he/she/it was HwBz, $wA:z you/we/they were HwF:D, $wF:r, past part been bi:n, bInused to say that someone must or should do (something)表示必须或应该You're to sit in the corner and keep quiet.你必须坐在角落里保持安静。Their mother said they were not to (= not allowed to) play near the river.母亲不准他们在河边玩。There's no money left-- what are we to do?没钱了----我们该怎么办?
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