重点讲解：
1. put in 花费，投入（时间或精力）；
例句：They've put in time and effort to keep the strike going.
他们花费了很多时间和精力以使罢工持续下去2W^L7vcnIYKpLs2ZZ。
2. chop up 切碎；剁碎；
例句：Chop up three firm tomatoes.
拿3个硬西红柿切碎WRAN~Y6&shQe]R[Xi;。
3. by hand 用手工；
Each pleat was stitched in place by hand.
每条褶裥都是手工缝制到位的vkRa^;Ve.A+。
4. stick to 黏附；附着在；
例句：Peel away the waxed paper if it has stuck to the bottom of the cake.
如果蜡纸已粘在蛋糕的底部，就把它撕掉dKi!q;&cp5#D=AuSTr。