sb's whereabouts
(人或物)所在的地方;下落;行踪:
His whereabouts are / is still unknown.
他仍下落不明。
track sb / sth down
搜寻到;跟踪找到;追查到
The police have so far failed to track down the attacker.
警方至今未能追捕到攻击者。
magnify sth
扩大;增强:
The dry summer has magnified the problem of water shortages.
干燥的夏季加剧了缺水的问题。
get back to sb
以后再答覆(或回覆)某人:
I'll find out and get back to you.
我查明之后再答覆你。
blow up=enlarge
放大(照片或文件):
We're going to have this picture enlarged.
我们准备将这张照片放大。
cluster together
群聚;聚集:
The children clustered together in the corner of the room.
孩子们聚集在房间的角落里。