Check the expiration date on your passport.检查一下你护照上的截止日期。Period may be extended upon expiration ( through agreement ).通过协议可以延长期限.Your girlfriend's past her expiration date, and we're crazy?你的女朋友是个死人说我们疯了?...
The body is 90% titanium for ruggedness.为了实现优良的耐用性，主体部分90％采用钛金属制造。The company produces titanium alloy.该公司生产钛合金。The reactions are conveniently studied using a solution of titanium choloride.用氯化钛溶液可以很方便地研究钛的反应....
...six months of abstinence.禁欲6个月...total abstinence from alcohol.彻底戒酒total abstinence from strong drink戒绝烈性酒Abstinence is the best medicine.节制有度是良药.The best way to avoid pregnancy was total abstinence from sex.最好的避孕办法就是...