動詞 slip:

1. move stealthily
   同義詞：steal, slip
2. insert inconspicuously or quickly or quietly
   同義詞：slip
3. move obliquely or sideways, usually in an uncontrolled manner
   同義詞：skid, slip, slue, slew, slide
4. get worse
   同義詞：slip, drop off, drop away, fall away
5. move smoothly and easily
   同義詞：slip
6. to make a mistake or be incorrect
   同義詞：err, mistake, slip
7. pass on stealthily
   同義詞：slip, sneak
8. pass out of one's memory
   同義詞：slip, slip one's mind
9. move out of position
   同義詞：dislocate, luxate, splay, slip

形容詞 slipping:

1. moving as on a slippery surface
   同義詞：slithering

1. He held on (to the rock) to stop himself slipping.
   他緊緊抓住(巖石)以免自己往下滑。
2. The straps keep slipping off (my shoulders).
   吊帶老是(從我肩上)滑下來。
3. I've forgotten your name again I must be slipping.
   我又把你的名字給忘了--我肯定是不行了。
4. The van slipped (a few feet) down the embankment.
   那客貨車沿堤壩向下滑動了(幾英尺).
5. She stuck a pin in, to prevent the paper from slipping.
   她插上一根大頭針，防止紙滑動。