1.hallmark n. 特征;特点
例句:His designs show a love of simplicity which is very much his hallmark.
他的设计显示出对简约风格的偏爱,这正是他一贯的特点 。
2.best bet 最好的选择
例句:A college degree is still your best bet for getting a job and a decent pay.
拥有一个大学学位,依旧是帮大家找到一份工作,得到像样收入的最有效的手段 。