641.on the sly (=secretly) 偷偷地 0 h7 ^( w0 B9 t& e1 s3 T 642.smell of有……的气味* J- G) D7 q& O/ [
643.be sorry about/for懊悔的,后悔的,难过的' f# Z; v1 }- n% A. e
644.speak ill of说……的坏话;) @' N5 k0 r% i+ g# U
speak well of说……的好话 ~$ [7 m/ y/ _: t: H o
645.specialize in 专门研究,专攻 ( D4 L s/ H) t. h% { 646.in spite of (=despite) 尽管 ! x8 u: v4 O, ^# m; }! R 647.on the pot (=at the place of the action) 在现场,在出事地点;或 (=at once) 立即 9 R! x" N4 _3 j% N& y 648.take a stand against 采取某种立场反对6 J8 \( v! D7 Q% O3 B
take a stand for 采取某种立场支持……/ S. C" N/ O( f; h/ ` w
649.stare at 目不转睛地看,凝视,盯着 : j+ t1 v: ]9 g; l, N$ T0 ^1 X 650.in step 步伐一致;out of step 步伐不齐