每日一句是：
Sometimes, smiles are like band-aids. They cover up the wound but it still hurts.
Notes:
有时候，微笑就像创可贴。虽然掩饰住了伤口，但是心痛依然。
1.cover
vt. 覆盖，遮蔽；采访，报导；涉及；包括
n. 盖子，覆盖物；（书等的）封面；隐蔽，遮蔽；（保险公司的）保险
vi. 代替；覆盖
常见搭配：
cover into
移交， 交付
cover up
完全盖住， 盖好；掩盖［饰］， 包庇; 隐匿
cover over
遮遍， 完全封蔽
be covered with
盖满，覆满；充满（羞惭，慌乱等），不胜...
blow one's cover
[美俚]（因隐蔽之地或身分被发现而）无藏身之地
break cover
由隐藏处跳出［飞出］
draw a cover
把（猎物）由树丛中赶出
provide cover for
给...打掩护
read from cover to cover
从头看［读］到底， 一页不漏地读完
remain cover
仍戴着帽
take cover
藏身， 躲避， 避难
under cover
在遮蔽处；附在信中；秘密地， 暗中
under the cover of
在...掩 护下; 打着...的幌子
under the same cover
用同一信封
cover in
（用土）掩埋；填起来， 填满