1.give birth to 生孩子

Compared to most mammals, human females give birth to a fetus, and it stays helpless a very long time.

与大多数哺乳动物相比，人类女性生育和保持胎儿处于无助的幼年期的时间更长)(bN^PY%xHVp9K3d7&-。

2.line up 排队

Please line up in order. Don't crowd.

请大家按顺序排队，不要拥挤sScQzE]ibJ51xgNj。

3.social media 社交媒体

Study found that children as young as 8 were using social media platforms largely for entertainment.

研究发现，8岁的儿童使用社交媒体平台大部分是为了娱乐s5i)ZI,pLbwx61~Xcxd。

4.opt out of 决定不参加……

Employees may opt out of the company's pension plan.

雇员可选择不参加该公司的养老金计划ov#*A#lQxEBZIUOnj。