1) There were about a dozen of them.
大约有十二人。
2) There were `twenty or so, ie about twenty.
大约有二十个.
3) About ten.
大约十人。
4) About twenty days in all.
总共大约二十天。
5) It's about twelve hours.
大约十二个小时。
6) There were as many as twenty.
有二十人之多。
补充资料：大约
1.大致﹐大体。 2.表示估计的数目不十分精确。 3.表示有很大的可能性。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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