今天小编为帮助
keep at 坚持,坚持做下去
figure out 计算出,弄明白
a set of 一组,一套 be aware of 意识到
account for 说明(原因或理由),占据
aim for 力求做到
bring about 产生,带来
in addition to 除了
tend to 倾向于做
engage in 从事,参与,忙于
rely on 依赖,依靠
fit in 适应;找时间做某事
go without saying 理所当然,不用说
pose a threat on 对……造成威胁
keep track of 记录;与……保持联系
be supposed to 应该,应当
catch on with 流行,受……欢迎
pipe up 开始大声说话;尖声唱;吹奏乐器
back up 后退,倒回去
fall into 落入;分成
out of place 不合适的,不恰当的
hold back 控制,阻碍
be messed up 搞砸了