1.pin down 弄明确
It has taken until now to pin down its exact location.
一直到现在才确定了它的准确位置1S7+1_.*8i29。
2.make of 从 (某事物) 中得出 (某印象、看法、理解等)
Nancy wasn't sure what to make of Mick's apology.
南希不确定该怎样看待米克的道歉_k%MM.2qodx3*#,)Sc。
3.brag about 吹嘘
On the outside, Brazilian leaders understandably like to brag about their growing ties with China.
可以理解，巴西领导人对外喜欢吹嘘他们与中国的联系日益紧密i!vyi4AM%u9al1VpoKQ。
4.be weary of 对…感到厌倦
They're getting awfully weary of this silly war.
他们对这场愚蠢的战争感到极其厌倦~.eQ&7BX.UGLHu||&。
5.back up 证实
Radio signals received from the galaxy's centre back up the black hole theory.
从该星系中心接收到的无线电信号证实了黑洞理论jfxTiELn@t5ow=p。