来自关键的问题
atfirstbyrdandhismenwereabletotakephotographs.wereabletotake换成took,意思有啥区别?
atfirstbyrdandhismenwereabletotakephotographs.wereabletotake换成took,意思有啥区别?
.wereableto表示成功做成了,而
took只是表示做过
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