He was trying to keep out of the bird's line of sight.他试图躲到那只鸟看不到的地方。Peg down netting over the top to keep out leaves.用销钉在顶上加固防护网，防止叶子落入。She stamped her feet on the pavement to keep out the cold.她在人行道上跺着双脚取暖。...
Her jacket was at the boutique waiting for alteration.她的短上衣放在时装店里，要做些改动。Prices may be subject to alteration.价格可能会有所变动。The shirt needs alteration.这件衬衣需要改一改....
电测系统选用进口双列封装的线性和集成电路.Feb import dual - use monitoring system is linear and IC packaging.不过串口通讯类封装的较完善, 使用也简单.But serial communications package better, also simple to use.有关FPGA芯片的管脚的封装的一些资料.Pin on the FPGA chip packaging...